In this situation, it's possible that someone has created a fraudulent account on Bitnovo and made a transaction using your card. It's likely that your bank card has been compromised and used by someone else to acquire cryptocurrencies.
Unfortunately, if the transaction has already been sent, there's no way to cancel it or issue a refund. This is due to the irreversible nature of cryptocurrency transactions.
To allow us to investigate your case further, it's important that you contact our customer support center. We'll ask you to provide the first six and last four digits of the card number used for payment, your full name, and the date and time of the transaction.
We strongly recommend that you contact your bank immediately and cancel the card.