MTN IS A JOKE and bad for business owners!!!

FOR MONTHS ON END I have been having terrible signal problems, I've reported the problem and had a huge group of technicians come around to my house and offices to try to rectify the situation. I was made aware of 'tower upgrades' and also that both my areas 'are bad for signal' even though this problem only started recently and not from 1st day of upgrade. Being a business owner I am losing calls CONSTANTLY and calls are not coming through - I am now using other phones on other networks as MY service provider is not providing the service as promised. I am paying a fortune monthly only to get frustrated numerous times a day and this is completely unacceptable and disgusting. Sending technicians around once a month and NOT fixing my problem is not helping the cause but a further waste of my time. If MTN can't provide me with a working phone/sim/network to call then I need to move to another provider that WILL or will have to take legal action and contact the CPASA.