Cell C refuses to let you go

My Month on Month contract expired in Aug 23. In Sep the debit order increased by R400. Upon investigation I did not read the T&C and did not notify them on my intention so all discounts fell away. Fair one, so I notified them of my wish to convert my number to a PAYG in early Sep 23 so on 05 Nov I was expecting the transfer. Nope, I get a debit order for R1068, which I reverted via the bank. I ring up to be informed that no action was taken on their end. They said they would investigate and revert writhing 2-3 days. They have not and I believe they are stalling in the hope that I will lave it. Unacceptable service and now I def want to leave Cell C. Social Media is the only hope I have as after many call, the ones above are just a few, I am beyond frustrated at the lack of willingness to assist. Customer lost if I can only get my own number away! Cell C if you see this - call me ASAP