Upward migration charged for incorrectly

In September Kalheel done my migration from a 3 GB to a 20 GB and said he would only activate from October 1st to avoid pro rate. Not only was I charged a prorate that took my bill to over R600.00 but I was charged a migration fee of way over R1000.00 which should not have been charged as it was an upward migration. This happened in September we are now in the end of November and I have already been debited all this money and no refund, apology or anything and my WIFI has been cut off even though they have debited me. Call centers do not help and Kalheel from Bluetech is MIA as he knows he messed up<br> <br> Please assist me in getting this fixed up and getting my money back as well as my wifi fixed