Cell C not doing what they should making it our problem now

Im absolutely so disappointed with cell c!!! I've used my number that my Mom took out on contract for me. We decided to end the contract and not upgrade, but clearly stated to them that we wanted the number on prepaid after contract ends. The day it ended my service was cut immediately and I lost all data and airtime I just bought before that. And since then I'm having endless trouble getting support. All my stuff, banking, work apps, websites, everything is connected to that number. I can't log in to works app to get documents I need very urgently! My mother doesn't have transport to go do affidavit and get all other documents that they want now to reactivate the number. She's also staying far from me, so I cannot even take her. This for me is very very unprofessional and not acceptable! This was a fault on their side, not ours. And now we have to sit with all this nonsense.