Bad attitude

I have been charged the incorrect price at Woolworths Pavilion. All I asked was for the item to be rectified and the difference to be paid in cash to me. The lady refused to give me cash back. She forced me to accept a gift card. Service is very pathetic in the Pavilion store. The attitude the staff has is something else. I have been refunded cash before at the same store for the similar problem. I don't understand how the staff can choose when to give a customer cash back or force the issue of a gift card to a customer. Attitude stinks in that store.....