............................., I lost the blessed lot with the exception of inbound email from non-PN POP3 servers. I could not send email or use the web at all and had to resort to the trusty back-up of the "3" dongle! Even then I could not send email via PN's SMTP server. This morning, everything has gone - I cannot even connect via PN with the non-PN POP3 servers. The phone line is working fine for voice and I do not suspect any router problems. So now I have the choice of putting up with this sub-standard service (I may get to use it later?) or jumping through hoops to get a ticket raised. If some kind PN support person would care to investigate, that'd be lovely. However, I have begun looking for a new ISP. Patience is wearing thin.

gardencoaster
Suggests the ADSL was still up when a problem first happened, but if it wasn't up on Saturday, it does suggest the possibility of a modem/router problem. Nothing PN do can affect your ADSL connection to the exchange - that goes with you whoever your ISP is!
I'd borrow another modem/router and see if the situation is any better - you'll be required to do that before you can progress a fault anyway.