Faulty handset plus non existent service

After I logged a complaint here, on a handset that had been been faulty and exchanged 5 times I received a call from a gentleman who mends the hellopeter complaints. Again, I was referred to Lungile whom I have been dealing with. She called me on Thursday and advised that the handset will be replaced with a new one once again. On Friday I wrote her a message on the Cell C fb page and advised that since Cell C has been giving me the same model handset 5 times, has it ever occurred for them to find out what the problem is from the supplier, which is BlackBerry, unless they bought rejects and giving them to customers it makes no sense that they have not taken up the problem with the manufacturer. I requested that I either be given a voucher or full refund on the price of the phone at the time when I bought it. Lungile tried to call me but I was unavailable. I wrote on the fb page again, because it is near impossible to get hold of her on the 140 (which I have just called even now and spoke to Nomthandazo). Till today I am still waiting. In the meantime I'm using an old phone that switches off whenever it wants. I will not advise anyone to take a handset from Cell C.