Air time not provided

1)My phone got ****** on the 18/05/2015 and i only got help with my sim swap/number on the 18/12/2015 after reporting MTN on hello peter. MTN promised to give me all my air time for 7months as it was their fault that I didn't have my air time for those 7months but I only got air time for 6 months which was for the month of May to October 2015 R1244.97 I called the head office about this, the call centre agent that was helping me said he's going to log a problem ticket about that mater then he gave me a ref numbers for that problem and in 3 to 7 days i'll get feed back regarding this, but as usual i didnt get that feed back i had to call again. Spoke to a different agent and said same thing, today i called again gave them the ref that agent tells the respond came back but no one called me or sent me an sms to inform me and they tell me they gave all the air time i was suppose to get. According to me my 7months air time is equal to R1400 as I receive R200 air time monthly. 2)On the 21/12/2015 i received an sms saying i've received my R200 monthly air time but wen i checked my balance it didnt come through on my phone and the agent confirmed it but today im told that i've received it