Big speed loss since Frriday's Failure

Question

To be brief my speed dropped off from 6mbps before Friday's outage to 1.5mbps yesterday morning when service was restored and now it's  barely managing 640kbps today. After a nice session with BT India to verify we aren't plugged into the toaster etc they say it's just a coincidence that this has happened and  it must be something with our line (I totally disagree as nothing changed apart from the outage happening!)
IP profile is set at 1000 - don't know what it was before Friday as wasn't interested. Data below obviously shows that we've only been connected 4 hours but this is at the behest of BT India making us clart about.
Bottom line is that come WednesdayI need to have a connection capable of supporting me watching some online lectures i.e. watching live video and this connection obviously won't support it - is there anything I can do to get BT to pull their fingers out? I'm at the point of ringing around friends and family to find someone with a suitable connection I can spend 2 weeks at but obviously this isn't a cure!
Any advice that doesn't involve waiting for days greatly appreciated.
Connection information<script type="text/javascript">// createTable("normal", trClass, td1, td2); // </script>
Line state
Connected
Connection time
0 days, 4:49:23
Downstream
8,128 Kbps
Upstream
448 Kbps
ADSL settings<script type="text/javascript">// createTable("normal", trClass, td3, td4); // </script>
VPI/VCI
0/38
Type
PPPoA
Modulation
ITU-T G.992.1
Latency type
Interleaved
Noise margin (Down/Up)
8.1 dB / 23.0 dB
Line attenuation (Down/Up)
27.0 dB / 14.5 dB
Output power (Down/Up)
19.8 dBm / 12.3 dBm
Loss of Framing (Local)
10
Loss of Signal (Local)
4
Loss of Power (Local)
0
FEC Errors (Down/Up)
647 / 0
CRC Errors (Down/Up)
0 / 2147480000
HEC Errors (Down/Up)
nil / 0
Error Seconds (Local)
5

Answer 1

Update since Sunday's posts:
We told by BT India that someone would call back about problems within 24 hours (i.e. by 1400 Monday). Nobody did of course. When I then called them back I was told there wasn't a fault on the line (strange because there was on Sunday but for some reason I didn't believe it). He then had me swap my filters (again - and I've got 5 of the buggers so they can't all have mysteriously failed since Friday!) and told me that it was being passed to the engineering department who would called within a three hour window today - nobody called.
I know the common consensus is to wait for things to recover by themselves (My IP Profile is at 750kbps whereas we used to get >6meg) however I have just paid a considerable amount of money on a distance learning masters degree that reuires my to take part in (not just watch) lectures via streaming video and obviously I can't do this downloading at 680kbps (I've already tested it - I can't even get BTs own help videos to load).
Is there anyway I can get some intervention and get my IP Profile changed manually? If not I may as well dump the homehub in the bin and use my mobile for email and what little surfing I do.
Sorry for the moaning posts but BTs customer service should be thoroughly ashamed of itself. It's bad enough being patronised and lied to but when you pay or the plaesure it's just doubly insulting. Rant over.