My account is in arrears

Good day<br> <br> I have recently 27/03/2016 requested a premature cancellation, signed the documents, paid the exact amount of R126,75. The line was cancelled on 31/03.2016.My regular monthly debit order went of as usual on 31/03/2016. On 5 April @ 16:10 I got a call from an automated system warming me that my account is in arrears with R126.75. I phoned ***, spoke to a lovely lade who told me that I can simply ignore the message since there's nothing wrong with my account. Today @ 13:52 I got that exact call again. Could you please get your cancellations department and billing department to do their jobs? I'm not going to phone in again and explain my story to someone else. I would appreciate it if you could sort out my account. <br> <br> Thanking you in advance