Cell c not processing data purchases

I am extremely unhappy and would like to bring under cell c attion that when you try to purchase data from them numerous times it has happend that the system says it will process the request and it simply does not process the data buying option resulting In rechargeing again, only to use your airtime and the request is still not processed. This is the 3de day in a row this has happened. When speaking to a consultant they simply say there's no problem