Disconnects 2, Judgement Day

Question

Pmorrison you have my sympathies, good luck.
So the story so far from my point of view is: Hub number 1 arrives for 24th Sept activation.  A couple of days in and it starts dropping connection.  Call customer service and they say after a line test its a faulty hub.  They send a new hub out.  Meanwhile I take advice from the forum and test every angle of the internal wires and equipment.  Even try an old hub....same problem....around 20 disconnects a day.  New hub arrives, a type b this time (first 2 are type a).  Set it up, same problem occurs.  20 disconnects a day.  I suspect line noise from reading other posts, SNR is running at between 11dB and 30dB down and constant 25dB up...whatever that means(!).  I can hear a low hum on the quiet test.  Another phone call to India.  No point trying to discuss line noise with them...I tell them that I think the problem is external so they book me an INTERNAL engineer who can't check externals.  Different departments he tells me when he gets here.  He does everything I have done in the house, I actually tell him when he comes in "you're wasting your time!"......he agrees after 20 minutes.  IP profile is 7000k, download speed at 7200k up at 448k.  "No problems here".  He notices the hum on the quiet test and agrees the noise is excessive, reckons the fault could be either water ingress or D/E side problems.....goes away promising to report it to Openreach and.......RECORDS THAT THE FAULT IS RECTIFIED!!!!!!
Right lets start again I tell the wife.  She phones India one more time and the old "fault on the line, we will fix it within 24 hours" chestnut is used.  So a month in, 3 hubs later, still disconnecting 20 times a day. 
I use the internet for Xbox live mostly so you can understand my problem with the lack of longevity of connection....half a game of Fifa...disconnect....Battlefield online.....disconnect.
Also we have option 3 unlimited so I could streaming and downloading facilities online....can't use them.
I'm a patient man but I really feel that customer services don't understand the problem.  All we want is for an engineer to check maybe the drop to the house, E/D side? Maybe the connection at the exchange which is at the end of the street here.
Any suggestions welcomed.  Obviously I'm stuck with the service for however long it says on the contract.

Answer 1

Sorry for the blank post, was trying IE9 Beta and posts don't come up with it, so rapid change over to Firefox!!
Openreach gentleman attended this morning, very professional and pleasant man.  Informs me of a broken cable 6 metres from the master socket.  Simple replacement of drop?? No!  I live in a terraced row of 4 houses and all the BT wiring is below the floors of the houses.  So I am in house 2 and my cable runs through 3 and 4.  Sod's law the faulty cable is somewhere beneath house 3 and house 4.
So now I must get wayleave permission from house 3 and 4 to enable Openreach to run an external drop along the roofline, if they refuse, the last resort is to dig the street.  I reckon in that case we'll just offer to cancel the service rather than see the street dug up.