CellC *****s customers cash, refuses to try help out.

This company is a bunch of ****bags, You select to buy voice airtime for cellC to any network ,on their app. But it automatically reverts back to CellC to CellC , on its own, if you go out and come back into the buy voice airtime page, You mistaking buy R90 voice, as CellC to CellC, instead of CellC to any network, as CellC to CellC is automatically selected as default. We don't need CellC to CellC as we already had over 1000 minutes, but we were running out of CellC to any network. We called into the call center and explained the issue and asked if we could rather transfer the R90 purchase across to CellC to any network. We had not used the R90 purchased. CellC refused to assist and indicated that I needed to get my bank to reverse the transaction on my credit card. I went to my bank and requested that they reverse the transaction. My bank tells me that they can do nothing and that CellC must fix the problem. So I paid R90 over to CellC which they have received but can't allocate it to anything else on their system, this is disgraceful and borders on theft, they can see what happened regarding the voice airtime purchase as it is obvious. But they absolutely refuse to assist their customers for such a simple request.