Paid up Virgin Mobile account

I had a virgin mobile contract a long time ago, sometime between 2***, the telesales consultant that called me offered me a product that I was to pay R200 for 1000 sms and unlimed calls. At the end of the first month of taking the contract I recived a bill that I owed about R560. I called Virgin Mobile to complain and I was not assisted. I left the matter at that and it not receive further communication from them. In 2010 I received a call from a debt collections company that I had to pay Virgin Mobile. I made an arrangement with the them and paid the account. From 2*** I did not receive any communication from Virgin Mobile and considered the matter closed. In 2013, I received a call from another debt collecting company that I owe Virgin Mobile. I paid two installments of R1600 plus an additional R30. After that I still didn't receive communication from Virgin Mobile. Late last year in October, I received a summons from another Debt Collecting Company, I informed the company that I had made payments and sent them proof of payments and spoke to Rebecca Kodisane. Today another company called me to say that I owe VM...please I don't have the energy for this. Kindly sort it!!