Pathetic service and *********** customer service agents

I have been liaising with Teljoy by contacting them in April to advise that my contract is coming to an end in May. They acknowledge and that was the end of the conversation. I received an invoice again to pay for June and i queried it asking why and how this is possible. What needs to happen to end this contract. Thembinkosi then told me that Teljoy sends an email to advise if you wish to ownership which he will try and find and send. I paid the amount, sent a formal notification in May that i want ownership of the machine, and to date have not received any email from Thembinkosi Ngwenya. Instead, he sent a communication for another client for a washing machine to me and said it was an error on his part. I'm frustrated with Teljoy and they are still sending me an invoice now and my contract has ended and refuse to give me my ownership. I would like this matter resolved or im taking further steps. Ripping customers off like this is totally unacceptable and your customer service agents don't know what they are doing.