Paid up account

I paid an outstanding amount last year which I owed to Telesure. Today the 26 of February 2015. I got a sms that I must phone telesure regarding my account asap ref number ***. When I phoned the first consultant didn't know much and put me through to someone else, but I was cut off, wonder why. I phoned again and I was told that the sms was sent in error, I wanted to speak to one of the managers but he was busy. The person who sent the sms? well I could not talk to<br> <br> I am livid about this. I want the guilty one who sent the sms to get a written warning. I paid that blooming account being a single mom with three kids.