> For the complete documentation index, see [llms.txt](https://help.europacbank.com/help/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.europacbank.com/help/faqs/bank-card/dispute-transactions.md).

# Disputing Fraudulent Transactions

If you suspect that a fraudulent transaction has occurred on your card, it is recommended that you **block the card** first to prevent any further transactions.

The blocking can be done through the same module as reporting a lost/stolen card.

Once your card has been blocked, you can call the Call Center on the back of your card. A customer service associate will guide you through the process of submitting the fraudulent transaction claim.

You will be required to provide supporting evidence to substantiate your fraudulent transaction claim.

{% content-ref url="/pages/-MbVvcXSM5fSrgCrPF0W" %}
[Report Card Lost/Stolen](/help/ebanking/bank-card/report-card-lost-stolen.md)
{% endcontent-ref %}

{% hint style="warning" %}
Please keep in mind that fraud disputes can take some time as they must be fully investigated.
{% endhint %}