Misleading Information

Cell C retention staff can not be trusted.. I settled my account with them and few days later I got the sms advising that my account is no longer contract account but prepaid that month end of July 2018. On the 01/08/2018 after closing my account I received their contract benefits, I called the retention dept I spoke to a TL Siphokazi the matter was the being handled by her. I kept on calling and calling and the benefits were not taken away. I then called on the 03/08/2018 and spoke to Siphokazi I told her I need to load airtime but I can't because cell c hasn't taken their benefits away. Siphokazi told me use all of them I will not be charged because the matter has dragged for too long I asked her if am I going to pay for them she said No.... Now in September I get an email from Cell C telling me I'm owing for the benefits I was told on call by a TL to use them nd I will not be charged... I need answers because I will not pay for them I need them to send me the call recording of the conversation I had with Siphokazi then they must tell me who should pay since I gave them a chance to take benefit away but they did not and yet I was told by their staff member to use them and I will not pay for them.