MTN, stay connected? Sure, via GPRS

After multiple long calls to the call center I have had no help at all. I have multiple contracts with MTN which the majority is data contracts. One of which is fixed LTE. For months I have had terrible connection. Every month I have to pay thousands for sub standard performance. I was promised responses and call backs and and and but still nothing! I am on the verge of stopping the debit orders and getting an alternative solution. I have to run a business via the internet and MTN is certainly not solving any problems there. Stores are useless and say you have to submit a query online. Call centers make empty promises after ages of holding. The worst network. I am reporting this to ombud of not sorted by the end of the day.