Bad service

I am so disappointed with Vodacom. I upgraded my contract and took a laptop .My account has been on debit order and I have never miss payments with them. Last year I notice that Vodacom was not collecting their monthly installment.I took initiative and called Vodacom to find out what wrong .I was still using same banking details same payment date and I did not cancel the debit order.There was no valid reason to why and I made arrangement to pay what was outstanding at the time .I said vodacom must collect R600.00 untiL i finish the arrears we agreed.I think they collected for two or one month again.I kept calling and they also called I told them to collect the money via debit order.Now I am being harassed by Attorneys because I owe Vodacom. I want Vodacom to solve this and clear my name this is not my problem.I said they must collect their money and decided not to collect and and now they are handing me over. Please solve this as soon as possible and clear my name.

Kind Regards Bongeka