ADSL 10mbps line syncing at 8mbps

I'm currently paying for the 10mbps , it used to run at full speed and never give issues.<br> <br> Then the exchange became congested, and after numerous phone calls to Telkom Support, they finally decided the best course of action would be to sync my line at 8128kbps/640kbps instead of 10mbps/1mbps (D/U)<br> <br> This was obviously not the issue, so several phonecalls later they did some work on the exchange and suddenly I was syncing @ 1024kbps (yes 1mbps)... then several more calls later, I finally found someone competent, and he re-synced my line back to 10mbps/1mbps...<br> <br> That was in May.<br> <br> It is now July and I seem to be getting around 6mbps on speedtest, however when I check my line syncing, they have dropped it back to 8128/640kbps.<br> <br> Telkom : Please could you re-sync the line back to 10mbps/1mbps, I am so sick and tired of your horrific hold adverts which are essentially troll messages having the cheek and audacity to tell us about exciting new products when your current service and products are beyond mediocre and quite frankly you should be embarrassed as a corporate entity.