Poor service

I had a problem of my airtime disappearing and i phoned the contact center to check my account last month and the gentleman i spoke to said he will clear the problem and also gave me a number i must sms to stop this. A month later i was still sitting with same problem of disappearing airtime and i called again only to find it wasnt cleared, i ask for it to be sorted and requested for my airtime back because the employee ispoke i spoke to clearly didnt do his job and now ive lost airtime again and Donald said his not authorised to do that but manage Sindiso Sokhulo will phone me within 24hrs to handle my query. Its been over 100 hours already and i have never received a call back, ckearly my request was ignored and i have lost airtime due to staff incompetence and so what???