Cell C - *****ing money

I went onto the Cell C app to load data on my data contract, and chose 12GB for R299.00. It asked me for my banking Details which I provided, and I received an Approve-it confirmation. It went back to the APP and it said it was not successful. I then proceded to do it again and again it said it didn't work. Two days later I checked my bank account and two lots of R299.00 have come off.

I then called the Cell C help line, only to be told that the App doesn't work this way and you can only load data if there is money already on the account!!!! really??? So then why take money off if it doesn't work this way.

I have been a cell subscriber for 8 years....no more

the Data contract number is ***