Telkom No Assistants with Query

I have been over charged R199 recurring bundle on my Telkom mifi bill for about 3 months(November, December and January) I did not add this to my bill. I logged a call on the 1st of February 2018 with to query how this got added on as recurring, have not received a response from them since today, its been 1 month and 18 days. i have made 2 follow up calls and re logged the calls online twice.

All i get told is they are still investigating. i am still being charged the R199.

HELP? Reference numbers : ********** 7 02 Feb 18 ********** 7 25 Feb 18 ********** 5 11 Mar 18