Unsatisfactory service

Hi<br> <br> I would like to understand as to why must I bring my debit card when returning or exchanging clothes and where is it written that the rewards card must be presented and no refunds or exchange will be done without the two cards. When I was issued the reward card all of the above wasn't mansioned to me. Why is it that when one seeks clarity from the floor manager or cashier one gets told to \bring my card back"(return the Ackerman's card then)? I had to drive to the mall and cancel what I was busy with just to show them My debit card and Reward card"