Collections phoned for credit card payment

I paid my credit card in full, 06/08/2015, 8h17 (transfer from my FNB cheque account). Mpho from FNB collections phoned me 9h50 to enquire when I will do my payment. I informed her that she must update the account details because I already did the payment and actual settled the account. She did that and said thank you and good bye. After the call I get the following sms:\ as per your telephonic commitment we are expecting a payment of R3***/11/16 on your Credit Card. Why the sms? I phoned credit card department on ***. Explained that want this to be rectified