Lodged a investigation and no response

On the 5th Jan 2016 i lodged a ***** investigation regarding my account that jumped from R792-99 per month for a year to Rover R8000-00. They promised to give reportback on 25th Jan 2016 - i am still waiting. now they have blocked all 3 my contract no. where is actually still took it upon myself to carry on paying R800-00 to cover the normal bill. They have block my WIFI i pay R200, My Tablet i pay R85! No service at all i asked for the no. in question to be blocked *** to do their investigation. i even went personally to vodaworld with this problem and still no response - now i am getting a bad name for their incompetence. What can i do to get this sorted out as the phone where the sim was in was damaged and paid out by insurance and they tell me it was used for data? you ask me how if the phone cant work. My WIFi contract was due for upgrade which i want to cancel and they say NO because of the investigation - well hello it is a different contract and number how stupid can they be! i would appreciate you help on this. regards Francine