Can I use RTVs to pay for... 1. A Northern Day ticket (NB: using a family and friends voucher my friend who works for Northern has given me that are issued to staff)? 2. a Sailrail ticket to Douglas IOM? I am 100% certain I shall be buying the above 2 things. Now for these last 2, I will get them if I am able to use RTVs. 3. Rail & Sail to Continental Europe (Calais and Dutch Flyer)? and/or Eurostar through ticketing? 4. Through ticketing for Preserved Railways? Finally, out of interest: 5. to renew a Disabled Persons Railcard by post (i.e. they'd have to be enclosed with the renewal form).