Can someone please just help me!!!!

On the 7th of February I requested my Telkom LTE device and FreeMe Contract to be cancelled upon maturity, which I was advised to be on the 6th of March 2018. Since then I have not received a single mail or sms with any feedback, however, I did receive an invoice for the month of March to April on the 7th of March. I have called the call centre on several occasions with the call centre consultants always asking me to send my initial mail to them so they can escalate if for me. . . and then nothing. So I spent my Sunday in the Telkom store at the Cresta Branch trying to sort this out. I was put through to the call centre once again. A lady assisted me and said that the issue has been escalated to the manager and she will put me through to the manager for him/her to talk to me. I waited on the line for 58 minutes just not to be answered and now I am highly irritated.

Please can you assign someone that can communicate with me and deal with this issue urgently.