HomeChoice punish you if you settle your account before agreed period

HomeChoice consultants calls everyday to ask you to take more goods but they are unable to give correct information. A person called me somewhere on 26 or 27 Feb to ask if i dont want more things on account I said no but requested my settlement amount. He said it is R2074.04 which i paid. Then 2days later i received sms saying thank you for the payment your balance is now R268.85. I paid it immediately but 2 days later sms came saying my balance is R38.62 which i paid coz I wanna get rid of Homechoice. Now my statement says R0.00 balance but minimum payment is R36.40. I feel that all this payments after settlement is a punishment for finishing the debt before the 12/18months term! I requested that the account must be closed via email but no answer and yesterday when they called again, the lady could not drop the call fast enough after I said I am not interested in buying feom HomeChoice so I could not ask her to close the account.