Terrible customer service and theft

Purchased airtime on the Cell C app. Money taken from my account but no airtime loaded on my phone. Contacted customer service 135. Was advised to wait 24 hrs, no other assistance or case logged. After 48 hours money reflected as paid to Cell C on my bank statement so sent POP to customer service. Advised no help unless they could talk to me personally on my phone but ignored my work hours and phoned during the worst possible time. Took the call just to sort the problem. Was told no help possible until I sent Cell C invoice. This is ridiculous as Cell C is the one who owns the Cell C software and can see my account on their system - see my payment, see my invoice. 11 days later still no resolution. Now I have had to buy more data which I don't even use up and it expires. Cell C has made so much money out of me by swallowing up paid for data at the end of the month and selling it back to me the next time. There is no assistance from customer service even though a 'case' was supposedly logged with the 'back office' after the third call to them. Essentially Cell C is *****ing money in this way and also reselling me data each time. I have had no solution and must settle with the fact that they have so many customers that my complaint doesn't really affect their brand and they don't really need to attend to it. Sending me the data now is also obsolete as I have already bought more and it will all expire together in 30 days. Cell C is the epitome of what is wrong with corporate business that doesn't train their staff to solve basic issues and doesn't see the customer as being a valuable asset. I will simply have to start using another provider and let go of the fact that they can ***** people's money with impunity and basically give their customers the finger because they are too big to even think twice about their shortfalls.