Disgusting service

For a while now i have been having trouble with fnb. I have now changed banks and have been trying to get assistance from FNB to close my credit card and downgrade my cheque account. It is like trying to draw water from a stone. The service has been beyond shocking. For over a week, i have been trying to get a settlement on my credit card which i only received yesterday. I paid the amount and now it shows I paid more than I should have. I try to chat to someone on secure chat, I'm told I'm second in the queue, its been more than 30minutes with no consultant attending to me. I then call in and get through to Nomotadi, give her my story and then call goes dead. I call in again, get through to Mbali, she puts me on hold for 10 minutes on all these calls I am paying for. I have laid a complaint yesterday with no response. I am still waiting for someone to call me regarding downgrade of my account, this request is almost two weeks now