Automated linespeed downgrade, ASSIA

My Rant is with Telkom DSL line rental service, I've been a client with Afrihost ISP for more than 2 years who offered me a bundled ADSL package that includes Data, and the Telkom dsl line rental. All have been going well till beginning of this year. For some or other reason my line speed that I pay for every month has been downgraded to half speed without any notification or any change in cost. After investigating and logging calls with Afrihost regarding the matter the issue was pointed out to be the ASSIA system that Telkom implemented, this system is automatically downgrading my line because it picks up that the attenuation is a merely 3db over the recommended 55dB. This then downgrades my line to what it thinks is a more stable line. This so called stable line is giving me a higher latency and slower download speed from what was a perfect latency and download speed before the ASSIA system issue. This is not a solution to a problem. Clearly the solution would be to upgrade the Exchange seeing as I can still only sync to a maximum of 2Mbps. Rather than upgrading, Telkom decides to implement a broken system. Please fix this.