Putrid Service of Cell C

I have been struggling since early November 2018 to sort out an upgrade, which subsequently became a request to cancel my contract. I was asked to wait till 11 January when my contract expired. It is now 10 days later and still I struggle to get the contract cancelled. I have phoned on numerous occasions and now the staff tell me that they have no info about my queries. Please have a look at all my Hellopeter.com and Facebook queries.

Cell C is putrid and the service non-existent.