VERY ANGRY CUSTOMER

An amount of R740 went off my account and the method of payment was captured as EFT. i do not have any beneficiaries on my account. when i called , i was told that the amount was deducted for a credit card. firstly, i had the credit card with clicks and they discontinued it so i would like you guys to send me the paperwork with the clause stating that you reserve the right to discontinue the card. secondly, i have never had a debit order on my FNB account number for this credit card so i want you guys to tell me who gave you authorization to debit my account. i would like for this to be resolved before the end of the day. you guys are taking chances and i will be taking action. i am well aware of my right.?