For about twenty years everybody gave the same bit of travel advice, and plenty of us are still giving it. Call your bank before you go. Tell them where you’re headed so they don’t freeze your credit card.
Here’s Chase, on their own website:
“Chase no longer accepts travel notices. With advancements in fraud detection technology, there’s no need to call before traveling.”
They won’t even take one. Capital One says the same thing in plainer words: there’s no need to tell them about your travel plans, even internationally.
And yet Visa’s own page for travelers still tells you to notify your issuer before you leave.
So the advice we’ve all been given, the advice you’re still being handed, and what the banks themselves now say are three different things.
I start there because it tells you what this whole subject is like. The reasons a card gets refused abroad have changed, and almost nobody has updated what they tell you about it.
What actually stops a card now
The old picture was that your bank didn’t know you’d left the country, saw a charge in Lisbon and panicked.
That isn’t really how it works anymore. The fraud systems can see the plane ticket bought on the same card three weeks ago, the hotel booked in the same city, and spending that looks like a person on a trip rather than a stolen card.
Two things stop a card now, and only one of them is about fraud.
They tried to reach you and couldn’t. This is the big one, and it’s why both Chase and Capital One replaced the travel notice with the same dull instruction: keep your contact details current. Something looks slightly off, they send a text or place a call to check it’s you, and if that goes to a number you don’t have with you, the check fails and the charge stays refused. Most of the time your bank didn’t just freeze you. It’s tried to find you and couldn’t.
The card is fine and the terminal isn’t. Foreign terminals refuse for dull local reasons all day long. A network outage. A card type the shop doesn’t take. A machine that only talks to domestic banks.
Being reachable, which is mostly about your phone
This is the part to fix first, because it’s the cause of most declines, and it’s how you can fix a decline the moment it happens.
Think about what the bank actually does. Something looks unusual, so they text you or they call you. If that goes nowhere, the charge stays declined and you never find out they tried.
Which means you need a phone that works the moment you land, and for us that means an eSIM.
If you haven’t used one, an eSIM is a phone plan you buy online and load onto your phone before you leave. There’s no chip to swap and no shop to find when you get there. You land, you switch it on, and you have data.
The alternative is whatever your own carrier sells you for travel, and that’s the expensive way to do it. Verizon’s TravelPass is $12 a day everywhere except Mexico and Canada, and that buys you 5 GB at full speed before it slows to 3G for the rest of the day. Two weeks of that is $168. A travel eSIM for the same two weeks costs a fraction of it, and the data is usually faster, because you’re on a local network instead of roaming back through your carrier at home.
There’s one thing an eSIM won’t do, though, and it’s the thing that catches people out. A travel eSIM gives you data, not a US phone number. So when you switch your home line off to avoid roaming charges, which is the whole reason you bought the eSIM, your bank’s verification text goes to a number that isn’t turned on. That’s the exact move that breaks it, and it looks like good trip admin while you’re doing it.
So pick one of these before you fly.
Leave your home line on for calls and texts, data off, and use the eSIM for data. You’ll pay almost nothing and the verification text still arrives. Check your carrier’s terms first, because a few of them charge for incoming texts overseas.
Or forget the text and use your bank’s app, which runs over data and doesn’t need a phone line at all. Most freezes can be cleared in the app, and the app is the one place you can usually see what got declined and why. If I had to pick one this is the one I’d pick.
But I do both. I have an eSIM for data, I leave my home line on for calls and texts, and I use my bank’s apps.
Either way, what you want is working data the minute you land, not whenever you find wifi. I set up an eSIM before we fly, and how they work and which one to get is in my free guide Travel eSIMs Explained: Working Data the Minute You Land.
The machines that won’t take your card
Some machines will refuse you when there’s nothing wrong with your card at all, and the ones to expect it from are the ones with nobody standing next to them. Train ticket machines. Toll booths. Parking garages. Gas pumps after hours. Bike hire stands and luggage lockers.
A staffed till has a person in it who can try something else or take cash. An unattended machine either takes your card or it doesn’t, and there’s nobody to ask.
So don’t stand there feeding it the card a fourth time. Retrying can lock it, which turns a small problem into a real one. Work down the list instead. Tap the card, because contactless is everywhere now. Use your phone, because Apple Pay and Google Pay get handled differently by a lot of terminals. Find the staffed window, which at a train station is usually thirty steps away and always shorter than it looks. And if none of that works, find an ATM and take out cash.
Two cards, two networks, two places
If you take one practical thing off this page, take this one.
Carry two cards, on two different networks, kept in two different places.
Two cards, because the thing you’re planning for is one card not working. Two networks, a Visa and a Mastercard rather than two Visas, because acceptance really does differ and the machine that refuses one will often take the other. And two places, because a second card in the same wallet as the first solves nothing.
Mine lives in a hidden pocket of my personal item, not in my wallet and not loaded into Apple Pay. It stays there unless I need it. It’s the same habit I go on about in my free guide Travel Safety Gear: What’s Worth Buying and What Isn’t, and it’s still the one people skip.
The service almost nobody knows they already have
This is the part I’d most like you to remember, because it’s already attached to the card in your wallet and I hadn’t heard of it either until I went looking.
If your card is lost, stolen or damaged, Visa doesn’t have to mail a new one to your house for when you get home. In its own words, it can work with your bank to expedite the replacement and ship it globally within 24 to 72 hours after approval. And if you need money before that arrives, it can arrange for cash to be available at a location near you, again once your bank approves it.
Two things to know, and the second one matters more than the service does. Your bank has to approve it, so this isn’t instant and it isn’t automatic. And Visa says plainly that travel benefits vary depending on your card type and your issuer, which means the only way to find out what you’ve actually got is to ask the bank whose name is on the card. Do that at home, when it’s a two-minute question, rather than from a hotel lobby.
It also starts with a phone call, so the number to call is the thing to have before you need it. It’s printed on the back of the card, which is no help at all when the card is what’s missing. Photograph the back of every card you carry and keep that photo somewhere that isn’t your wallet.
One more rule while we’re here
The habit that costs people the most money overseas has nothing to do with declines.
When a card reader offers to charge you in dollars instead of the local currency, say no. Every time. Visa says it on its own page: decline the conversion and pay in local currency, because the rate you’re being offered has a markup built into it.
Dollars feels safer because you can see what you’re spending. That feeling is what you’re paying for.
Everything above assumes the worst thing that happened is a machine said no.
The harder version is the one where the card is gone because your bag is, and that’s a different problem with a different order of operations. What to do first, what to do second, and the thing most people do third that they should have done first. How to set your phone up at home so a stolen one is an annoyance instead of an emergency. Who to call in a country where you don’t speak the language, and how to find someone who does. And the quieter part, which is how to prepare for a trip so it’s much less likely to happen at all.
That’s The Smart Woman’s Guide to Safer Travel. It’s everything I actually do, walked through every phase of a trip, with eight grab-and-go checklists and a fill-in emergency contact card so it’s with you rather than on a shelf. It’s $19.99.
The bottom line
The travel notice matters far less than it used to, and at two of the biggest banks it isn’t a thing at all. What every one of them still needs is to be able to reach you, so the phone number they have on file and the phone in your pocket matter more than your itinerary ever did.
Carry two cards on two networks in two places. Photograph the back of your cards so you can call someone when the card itself is gone. And ask your own bank what it will do for you if a card goes missing overseas, because there’s more there than most people know and it isn’t the same at every bank.
None of that takes money or a spreadsheet. It’s a few decisions made at home, so that a machine saying no is a shrug instead of a ruined afternoon.
Frequently asked questions
Do I really not need to tell my bank I’m traveling? Chase won’t accept a notice at all, and Capital One says it isn’t needed even internationally. Both say the useful thing instead is to make sure they can reach you. I’ve only checked those two, so if you bank elsewhere it’s worth two minutes on their site. And there’s no harm in filing one where it’s still offered.
Why did my card work in the restaurant and fail at the ticket machine? The restaurant has a person in it. If something doesn’t work they try another way, or they take cash. An unattended machine either takes your card or it doesn’t, and there’s nobody there to ask. It usually isn’t a sign that anything’s wrong with your card. Tap first, then your phone, then go find the staffed window.
Will a travel eSIM stop my bank from freezing my card? Not by itself, and this is the bit that catches people. An eSIM gives you data, not a US phone number, so a verification text sent to your home number won’t land on it. Either keep your home line switched on for texts, or use your bank’s app, which works over data. Or, like me, do both.
What do I do the moment a card is declined? Don’t retry it three times, because that can lock it. Use your second card, and if you don’t have one, pay cash. Then sort it out somewhere you’re sitting down with a data connection, not at the counter with a line behind you.
Is it safe to use Apple Pay or Google Pay abroad? It’s the same card underneath, so it’s as safe as the card, and contactless is widely accepted now. Just don’t make it your only method, because if your phone dies you’ve got nothing left to pay with.
How much cash should I actually carry? Not much, and I wouldn’t plan a trip around it. Most of the world is card-first now, even for small things. If you run out or a machine won’t take your card, find an ATM.
My bank froze my card. How do I unfreeze it? Use the bank’s app if you can, which is usually faster than calling and works over wifi or eSIM data. You may also receive an email from the card issuer with instructions to verify a purchase. Otherwise call the number on the back. Most freezes lift the moment they’ve confirmed the charge was you.
What if I lose every card I have? Call your issuer and ask about emergency cash. Visa can arrange for cash to be available near you once your bank approves it, and most people have no idea that’s an option. What you’re entitled to depends on your card and your bank, so ask yours before you travel rather than after.
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