hi  
 
i happen to come across this by chance !
 
Tiscali are no longer offering 5x on there web site only 10x At £15.99 the same price as 5x was before.  
 
so any users who are on 5x like i was can now manually upgrade there package to 10x 512mbps at the same cost.
it doesn't appear they are going to do it automaticly ?
 
it is all done in your member area and in your account settings -under upgrade your package.
 
hope this helps anyone here on 5x
 
regards