Internet connection rate ancient

Well for the past few weeks my internet connection from MTN has degraded constantly. First it was great on my smart phone it used to have a h+ when connected then it started getting worse and worse and stayed on a E and still is. I called the customer service probably more then 10 times the last two days. I spoke to numerous persons. And got sent new settings and got my sim reset and i rebooted my device. Which did not help at all as for the last 30 hours plus i had no internet due to the settings they sent not activating. After eventually getting through to the technical assistance i got assisted with a manual internet setup. But this is still the same as ut was before. E and it is of no use as it is too slow to load websites on a pc. And it keeps dropping the connection. Now i just feel we pay an awfull lot of cash weekly for internet bundles which gets consumed by this slow connection and does not even load the pages you want to load. If this is the quality MTN expects me to pay for hundreds of rands a month i will rather seek a better service provider that has an upgraded internet service.