Bad service

Both my wife and my self have a joint account at Ackermans. My wife lost her card and went to block, at the Promenade branch. Where she received the most horrific service, as she explained to me. They blocked my card instead of the wife's. Then after blocking my card they send a msg, that I need to pay a service fee or I have an outstanding balance on my account. The previous month I paid the balance. Now I go into the store in Tygervalley where I receive good service but the call centre agent doesn't know how to listen or respect customers. I give their head office a call to complain and still till today I'm waiting for feed back that was last month.