"GDPR delete request" is only allowed for treatments based on consent, which is only one of the 6 legal basis in the regulation. So you won't never be able to d

"GDPR delete request" is only allowed for treatments based on consent, which is only one of the 6 legal basis in the regulation. So you won't never be able to delete a credit card transaction. What GDPR gives you, is to know which data is kept, for how long and with access to whom. It also forbids for a bank to give your these information to Google or Facebook, for example.