Customer service non existent & a ******* service

I moved my adsl service from telkom to Mweb in March. App**** for a 6MB line as I work from home for a US company & need decent & fast service.<br> Since moving i have to call at least once a week as my service goes down or is so slow you can't open pages. Been running speedtests constantly & never get more that 3.9MBs speed. Another downtime incident today & technician said I will never get 6MBS as my line is set at 4 by Telkom. Request they downgrade me to 4 to save money (but also why was I not told this when i app****??) have been paying +/-200 extra per month for a service I can not even get!!!<br> Transferred to 3 different departments to request downgrade