Closed account but still get billed.

I contacted Discovery card division on the 2nd July to find out what my outstanding balance was so that I could pay and close my account.. I was told that my balance was approximately R9,7000, but in order to close it I must pay R9,890.49.<br> I paid this amount on the day and e mailed the EFT with a note saying please close the account.<br> A few days later I get an SMS saying I still owe R32.14, annoyed about this, as I was told my settlement was R9,890.49 to close the account I paid the R32.14.<br> I now get another sms yesterday and a statement saying that I owe another R65.44.<br> I have even received a confirmation email back from them with my mail attached with the receipt of payment and the mail asking to close the account. I am mad and am considering closing all my policies with Discovery because of this, even though this is a small amount this is not right