To cut a long story short I completely lost my PTP database in September after my computer hard drive got wiped (I wont go into details!!) Got the relevant codes from PTP and starting loading clients one by one as I do a return. Only detail I have about the past is hard copies of returns filed since 2008. Just tried filing a return by FBI and its been rejected because my credentials failed validation. It seems the username/password I have used does not match the original.
Emailed PTP but all I'm getting is to call HMRC, just that. Blimey its a big organisation but who knows a contact number, presumably its a technical help line?