Refund of incorrect Premium & Tracker requirement issuse

I called miway to check on the reason why I was debited R2260.70 for the month of June 2017 instead of the agreed upon amount of R1862.09 & spoke to a consultant that said he would have the matter resolved with his manager within 3 days. Two weeks went by & I logged a call back request cause they never answer the calls in the business section & spoke to a Kingsly on the 18th July. Kingsly advised that he escalated the query to his manager & will get it sorted by the 21st july. I have had no refund as well as no call back from the manager of him. On the 06th of August I logged another query for kingsley & his manager to callback & I was called back by a lady & she confirmed nothing had been done with regards to my refund & advised me that my vehicle had not been covered due to a tracker they were supposed to have fitted by March 2017. I have not been called for the tracker or my refund since. I have tried to contact them on 15th Tuesday 2017 & had no call back. I have never received such appalling service before.