How do I block a card with you? All you need to do is speak to our Customer Support Team and they will be able to arrange this for you. For further guidance on blocking gambling transactions from your bank account, please contact your bank. Related articles Can you remove my card details? Withdrawing My Balance What should I do if I've got a new card or want to use a different payment method? Can I block a card I have already registered? When can I change my payment method?