MTN quick to take on new Contract..waiting on refund 6 months after cancelled contract

Not even worth 1 star… I took out a fixed line data contract with MTN in Jan only to find out that the area I was living in was not getting any signal. After 3 months of Mtn trying, I told MTN due to no service being available or delivered to cancel my contract (note…end of April. 5 months later..I am still waiting on my refund. NB there is still a debit order coming off my bank account