← FFCheckWho do I contact?CS
Money · Czechia
Updated September 2026

💳 My bank card is lost or stolen — how do I block it and who do I tell?

Direct answer

Block it now: through the app, or by calling Your bank — card and payment line — the number is also on your bank's site and works 24/7. Until you block it you can be liable for a small excess; after the block you are liable for nothing. Then file a report with Policie ČR — oznámení (158) if it was stolen — the bank and any insurer will ask for the report number to refund fraudulent payments. If the bank refuses to refund payments made after you reported the loss, Finanční arbitr (257 042 070) decides.

Call firstYour bank — card and payment line
Report toPolicie ČR — oznámení
If that failsFinanční arbitr

🗣️ What to say

"My [debit/credit] card ending [digits] was [lost/stolen] on [date] at about [time]. Please block it immediately, list any payments since then, and tell me how to dispute the ones I did not make."

🪜 Step by step

  1. Block first, search laterApp, phone banking or the emergency line. A card found later can be unblocked; money spent cannot be un-spent.
  2. Check recent paymentsIn the app: anything after the loss is disputable. Note the time you noticed and the time you blocked.
  3. Police report for theftOnline where possible; it takes ten minutes and the bank needs the number.
  4. Dispute the fraudulent paymentsIn writing to the bank: date, amount, merchant, "not authorised". Refund is due promptly, minus at most the legal excess for payments before you reported.
  5. Contactless and walletRemove the card from phone wallets and update any subscriptions that were charged to it, or they will fail next month.

📇 All contacts

Your bank — card and payment lineRecall a transfer, chargeback, block a card, freeze the accountImmediately, 24/7 — the number is on the back of your card
Policie ČR — oznámeníCriminal complaint online or at a stationAlways — the basis for bank, insurer and platform📞 158🔗 www.policie.cz/clanek/oznameni-trestneho-cinu.aspx
Finanční arbitrFree dispute decisions against banks and payment institutionsAfter complaining to the bank without a solution📞 257 042 070🔗 www.finarbitr.cz

❓ Frequently asked

How much can I lose?

At most the legal excess (typically up to €50) for unauthorised use before you reported the card, and nothing after — unless the bank proves fraud or gross negligence on your side, such as writing the PIN on the card.

The bank says I must have given the PIN

That is their claim to prove. Ask for it in writing, dispute it, and take it to Finanční arbitr if they insist.

I lost it abroad

Same steps; block through the app or the international number on your bank's site. A police report from the country you are in is fine for the bank.

📎 Sources

Last checked: 2026-09-26

🔎 Common searches

Recognise your own search? The answer above covers all of these.

  • “block bank card lost Czechia”
  • “card stolen who to call”
  • “bank card lost liability unauthorised payments”
  • “report stolen card police Czechia”
  • “dispute payments after card stolen”

🧭 Is this still correct?

We check this information carefully, but phone numbers, websites and rules change — and sometimes we get something wrong. Spotted a mistake or a change? Let us know below.

🔗 Related questions

🎯Phishing message→📱Device stolen→💳Scammed online→⚡Energy bill dispute→

Your tools for Czechia

Before it goes wrongCan I?What is allowed, what is not, which permit you need — with the official source.Energy · CzechiaElectricity & gasThe rules that protect you as an electricity and gas customer in Czechia, and who to contact. Every fact is checked on an official source.Recognise it firstIs dit veilig?Check a phone number, website or message against 47,000 scam dossiers.