Account closed

01 December my balance being R6900 i wanted to make a payment so that i can close off the account the lady that assisted me advised me to request a settlement letter. of which i did, she called Game head office to ny surprise theh did not request to speak to me and confirm my details. i wadtold my settlement amount is R7000+ i made the pyment and requested my acc to be closed called again and spoke to the consultant and advised acc was closed without speaking to me. i received an email with a statrment showing a R57 as an installment how is that possible as i paid more and to my knowledge my acc is closed