Disgusted by your service

I called mtn 3weeks ago to have data share activated on my ph, i was told everything is in order and to just dial the code,however the service was still not activated,, i called in again about 8 times where the calls were dropped and staff just being blunt and rude,, i was transferred from here to there and was even given the technical dep number and they told me there's nothing they can do about my query.. A call was logged and i received a sms with references saying my issue has been resolved,, i called in today 7 times and every time i get the same answer,, that data share was activated but i keep telling them when i dial the code i get a error msg,, im utterly disgusted by this service,, your staff can't do there work right and they have absolutely no telephone ethics, how hard can it be to activate a service or see the reason why I'm getting this error msg,, i want this sorted asap or i will be canceling my contracts i have with you,, this is know wat to treat your clients,, its unprofessional not to mention repulsive and rude