bad service

I was buying pants for my lil girl for cash, iwent to the tills to pay for it , as im about to give ackermans store card for A.rewards the lady was helping me Mary was not nice to me she told me that xhe cant accept the card cause she already done with the transaction and there is nothing she can do and ask why at the first place u didnt ask if I have the card or not yu didnt communicate with me you were talking with your colleagues while helping me , she respond with me with bad attitude saying dat next time when yu come yu must introduce your card first we dont have time asking you costomers , then I left