Pathetic service from CellC

In December 2020 I went to cancel my CellC contract, the employee told me there was a settlement amount(R6300) and I paid it. A couple of days later I phoned to ask about my cancelation and was informed by the lady that there should not have been a settlement as my contract was expiring in about 10 days and that I should question it. At CellC store the lady there showed me on her computer that what the lady in the call center said was correct and that CellC needs to refund me. Since then it has been a complete disaster dealing with loads of *********** people at CellC who log complaints and you never get feed back from anyone, only sms messages stating the issue has been resolved and if I phone in I get told that nothing has been done.