Cell C Bad, Bad

The worst cellphone company to do business with. I'm doing many surveys with trusted companies in exchange for points which is converted to cellphone vouchers or whatever the case may be. These companies have agreements with the cell companies. In the past week I have twice converted these points in exchange for Cell C airtime. Twice Cell C have send it back to the companies. Today was the 3rd time I have tried to exchange my points for Cell C. All they have to do is credit my account, but they can't even do this. Everytime I complains, the response is only "Sorry". This is costing me my time and money. Now I have to buy unnecessary airtime which I already have at the companies, but can't use it due to Cell C's incompetence. They will never reimburse you for their mistakes. I'm fedup with this lack of service. I have also lost a lot of surveys, which is money, due to the fact that I didn't want to buy airtime or data, because I have airtime coming which never came. The airtime is converted from British Pounds to Zar. Who is going to pay for the difference in exchange rates? Me again. They will just say sorry. Stay away from this cellphone company as far as possible. They will just cost you money.