MTN has poor signal in Vredekloof area

I was due for a new cellphone contract. Was with Cell C for years and decide to port to MTN . I battle with signal when at home and after several sim swabs ect and within the first month at MTN they request me to cancel my contract for a full refund due to towers in my area not working. Said it would be cheaper to release me from contract that fixing the tower. This was my worse nightmare to start all over again with finding a new provider and package that would fit my needs. I've sign up with Vodacom on a promotion package on 1 June but due to delay of 9 days for MTN to release my number to Port to vodacom I lost the deal - increase of prices after 7 th the month. I also still waiting on MTN to refund my account of R1130.50 as promised - I had no use of their services for that month of May but were billed more that my package of R699. After several emails, sms to manager, calls to MTN billing no refund off my account were **** yet. Is MTN *****ing from their customer not just money but also precious time wasting to follow up?