Disappointing Service

MTM 100GB package was supposed to be a breeze but tonight I've had it! The billing is so confusing. Advertised as a R295 package then the next month there was an increase fine. I have never paid on time because the amounts never make sense! They're not what I signed up for. So I moved house yesterday. Called the call centre to change my address. Very professional lady told me that it would be best to change it when I am at the new address which made sense. Gave me a reference number so that today's transition would be easy. So I call today only to get the shock of my life. Guy tells me this is the only change of address you can make for the next 12 months. Hello MTN you have no right to tell us where to be in what period of time. What if I'm a sales rep that can't be in one place at a time or that moves from region to region. That is not going to sustain your customers I'm afraid. Guy goes on to say if you change your address again you'll need to bring back our device woow !! In a country with at least 10 extremely good WiFi service providers. I have paid 4 times this year for my subscription and I expect to have connection right now but I don't. I should have changed my address by now but I haven't all thanks to the so called knowledgeable rep I spoke to who was a complete waste of my time. Reason I'm doing this is because MTN is one of the largest and reputable service providers I thought I knew I'm deeply disappointed