African Bank is a trap to indebt South Africans!!!!

15 July I got a settlement letter stating that the offer is valid till 15 August, I settled the account on the 25th of July. African Bank now advises that the account was sold on the 24th of July so I have not settled it and I am sent from pillar to post as to who can help resolve this. To top it all, getting attitude from the call centre staff asking me questions such as " yes you paid , but after how long?!" Can someone please sort this out?!!!! I am trying to get my life in order and African bank is just not being helpful as they were when they gave me the debt!