poor customer service and bad attitude

I had sent an AG chrome tablet and booked it in on the 5 may 2015 due to the fact that it went blank on screen.Tembisa who works on the cell phone department booked it in and told me she will call AG mobile so I must wait for the call.June 30 I went back to the shop cause no one had phoned me since, all to find out that Tembisa tells me AG said I must come back month end July. Month end July Tembisa told me to be there very early and I arrived at 10 o'clock in the morning I was walking around that shop like her dog with no information about my phone, she told me that she will call AG after an hour (it was 11 when she said that), an hour passed with me sitting confused, she took her cash up and went to lunch telling me to come back at 14:00 after her lunch time..I came back she ignored me until 3 and told me nothing but **** that I should go home she will call me and let me know the following day or I should take my phone to an outside repairer ( after 3 month's they kept it).Till now I have not received any call from her, I want my phone fixed or I am going to the lawyer's to sue Jet and they must hire people with good customer service skills.