I had numerous problems with Tiscali and moved to Pipex who were very good until they were taken over by Tiscali.
The first thing Tiscali did was to change the customer line to a premium rate line and then change over the server settings so most Pipex user had a problem and had to ring the new number,then wait an age to get an answer. I now have another problem logging onto a Bank account which the Bank say is a Tiscali problem that has not been resolved.
I cannot wait to get away from Tiscali, however even that will not be easywith that lot.