woolworths credit card terrible service

i have tried now for 2 weeks to settle a credit card...phoned on friday 29 jan, got settlement and paid it, confirmed payment received on saturday 30 jan, and asked to close account...on tuesday 02 feb there is R300 due on card, on thursday R600 on friday R1027 due.....got a settlement letter and paid 1027 on saturday 07 feb,mailed proof of payment....now payment is lost...every consultant has a different story...get blocked from talking to team leader or manager...no response from complaints on app....