Worst service provider.

After paying my account by eft. Cell c tried to do a debit order on the 22nd after i payed it on the 17th. After sending proof of payment and bank statement showing it and to supervisor still they tried to do a double debit order now tonight after they have the proof.i must pay bank fees for cellc neglect to sort their stuff out. They will give me refund for both debit orders and let them try and turn my internet off. We work from home. I must pay 599 and they tried to do a 1200 debit order. If this goes on like this i am stopping this internet. And my internet is almost off every week