Bad service

Did service upgrade last month the upgrade was put into effective early this month ( October). Was told upgrade was successful, conducted a speed test to my surprise was getting the same speed before upgrade (10/5). Logged a call with the service provider - was given a wrong case number on the 15 October called to find out the status - case number was changed. Did several calls to the support with no assistance. Don't know how long it takes to resolve an issue ( CAS- 863112).This company is giving MTN a bad reputation -