BAD BAD extremely unacceptable service!!!!!!

This is my original story - First I had an upgrade due in September 2017. I requested a Samsung A7. I waited 2 weeks where nobody even bothered to contact me to tell me they did not have any stock - I had to phone them to find out. I waited another week for this phone and when someone finally told me it will be delivered I lapsed into another month and got told now I have to pay the increased contract amount?! How is this even possible if I upgraded 3 weeks prior to increase amounts but due to the poor service now I have to pay more? I cancelled my whole upgrade. I got a phone call telling me that because of poor service I am rewarded 1gig of data for the next 6 months - at least something good came out of it! Then later decided to try and upgrade again. I asked for the Samsung A5 and everything went smooth until an hour later they phoned me to say "I cant get the A5 on the contract that they advertise everywhere" - I told them but you advertise it, I could not even get a clear explanation as to why I cannot get it on that contract but anyway what can I then do right... So very upset I asked them what phones do they have on that contract and then took the J7 prime. NOWWWWWWW I find out that my 1gig wasn't loaded for December and when I phoned they could not even pick it up on the system and got asked who told me that I may receive 1gig - like Im the one lying! I still have until March 2017 to receive my 1gig. A huge fight again and eventually got told they will follow up. My point is I am paying for a good service and its not cheap! I moved to Cell C because I was promised good service - so far I am very disappointed! Lets hope this gets resolved.

SOOOOOOOOO they called me and awarded me 1 gig data and apologised etc. BUT now I am being billed incorrectly from last month but when I phoned to ask they said oh it will be fixed and wont be billed that amount. WHAT HAPPENS?! my debit order goes off last night and guess what.... ITS THE wrong amount! AGAIN! THEY don't care! Or don't get the right service and I am getting fed up! so I am going to send you back your debit order until I get billed correctly! You cant bill me for an amount I did not agree on! You are *****ing my money!