Poor manners & Lack of knowledge

I logged a Hellopeter complaint 2 weeks ago and was called last week by Thabang. He did not know what was going on. He informed me that I will be refunded the full amount from the time that my contract expired. He then promised to send me this on email and I never got it. I calculated the refund amount to be R2093 as this is the full amount owed to me as my contract expired and Thabang did say on a recorded line that the refund is for the full 299 per month, Whilst speaking to him he cut the call and never called back. Nor did he send me the email as he stated. I was refunded on Friday R1200 - this is the incorrect amount. I want the balance of my money as Thabang did say on a recorded line that it would be the full amount of 299 per month, I also want Thabangs manager to call me as his service is pathetic and he had an attitude yet he was absolutely ***********. I expect a call and not a message on Hellopeter like the last time.