>> overnight this week these speeds have been slashed to between .5 and 2 mb.
Since March there have been quite a lot of complaints from tiscali users about their service getting even worse.
Unlimited means download what you like.. (at very poor speeds) except if its p2p then it will be totally blocked at certain times of the day.
Theres also many users who have found themselves "FUPed" to slow speeds through use of p2p and whilst no figures are available for the FUP, its said to be very low.
Current status of their network performance which was last updated for tiscali at the end of March
http://www.kitz.co.uk/isp/caps.htm Unfortunately as rizla says, possibly the best solution may be to migrate.
I think
this post on the tiscali forums sums it up where even the tiscali reps appear to be resigned that theres not much that they can do to expedite things. :/