Account Query - pending since 30 Dec 2017

On the 30th of Dec 2017 I queried my account bill with Telkom for my Router(which was advertised as the R149 per month special and the reason I got it) after a debit order went off on my bank account for R649 instead of the usual R149 that I had been paying as usual. When I called I was told that my data limit was R500, now in about July 2017 I had called Telkom and told them i only want to pay R149 and no extra's ,so I dont want extra data ( no record of that on their side so they say) 30 December requested that they remove the extra R500 data and they pull tapes to prove my case, was given a case number ********** 9 , Jan 2018 my bill was again read R649 was told no record was made of my request to remove the extra R500 data, Instead it would be implemented in Feb 2018,I requested to issue a complaint about the lady who assisted me on the 30th of December who ignored my request and asked for tapes to be pulled once again, was told as usual matter to be escalated ,that I would be contacted within 48 hours but i must know I wont get my money back, So now i must suffer for someones incompetence. 12th of Feb 2018 I got an sms saying my case was closed yet noOne contacted me , when I queried via twitter was told they will look into it , till today its been over a month now slowly going into 2 months, Money is still being taken from my account , I have I have contacted Telkom on every medium i can hold of , I've called them, Contacted Via Chat on Website, Via App, Via Twitter , This is my last resort, I really have no words , at this point I just want to cancel this router and move on with my life.