terrible customer support

Spent over an hour on the phone this morning to rectify my internet speed and then the call was just dropped on me. I upgraded from a 50mb line to a 100mb line earlier this week but up until today it is still showing 50mb. I was on a call with technical support and they told me that the sales team must just put the order through to openserve again to upgrade to a 100mb line.

I wont be paying a cent further until Im getting what I paid for. please rectify my line speeds asap