I was told the same thing, noise level too high.
Yet my line is fine, they supposedly have done several tests and I am capable of around 13meg.
My snr is way too high, if they brought it down to 6db ...
I'm pretty new to Orange broadband after suffering with o2 (now Sky) for a while. Actually that's a bit harsh as it wasn't really o2 (now Sky) that my problems were with but rather the dreaded IP Profiling ...
Sorry to hear about your problems. I was having a similar problem about a year ago (on o2 (now Sky)) and it was very annoying that tech support proved no use despite numerous phone calls. ...