Telkom not resolved my line speed issue

I upgraded my ADSL line data package from a 4mb to a 10mb, it took them a week to get this upgrade done due to some *********** people on their side.<br> I did a speed test and the max I get is around 4.1mbs. I contacted them and they said the technician might have made a mistake at the exchange.....3 weeks later after numerous messages nobody has got back to me or sorted out the problem. I am paying a fortune for a service but cant get the service I pay for.<br> I want this resolved by the end of business on Monday, they want to b treated as a first world company but give worse internet experience than Zim