Poor service

Hi there. I am not happy with service received from your store specially the Kolonade retail park 1. I went there this morning to pay my account, i had my account card and i was told that i need an ID aswell to pay. For real, i cannot pay my debt without ID? So now that i dont have one should i leave account in areas and not pay it until i bring my ID?

Lastmonth i made a purxhase of +R500 with just my account card. 2 days later i wanted to refund one of the items, boom they suddenly want an ID.

Is the signature on the back of the card not there to confirm if iam a card holder? And worse part is that this is never communicated when we open accounts. I need clarity because if this is the case then i dont need this account. Its my 1st payment month but all i want is to close it. I cant carry ID for all transactions.