Absa obtuse disregard for the paying client

Absa seems to forget that they are the service provider who is paid to work for the banking client. Yet the entity treats one like one is an undocumented refugee attempting to commit a *****. The complete disdain and inefficient service one recieves in the branch and via e-mail leaves a lot to be desired. Obviously the way they intend treating clients as per their mission statement. I have been attempting to close a paid-up credit card with no luck.the account in question has been settled in total yet bank charges quickly accumulate upon which interest is levied, and interest on interest etc. The entity and their representatives are reluctant to assist in writing via e-mail and insist on trying to make voice calls. I DONT TRUST ABSA AND REQUIRE ALL AND ANY COMMUNICATIONS WITH THEM IN WRITING FOR MY OWN SAFETY, PROTECTION AND TO HAVE PROOF IN WRITING. I do not seek any association with the entity any longer and want out. I'm tried of the additional stress absa causes me wasting time trying to disentangle myself from them I would not recommend absa as a banking service provider