I didn’t realise I had to activator my interrail pass as I already had the pass numbers.
today I booked an English LNER train which when I checked said it accepted interrail global passes. However, when I booked it didn’t ask for the pass number. I didn’t receive any discount.
later on today I received communications from interrail asking me to activate my pass and download the app. When o search for the same train through the app it looks a lot cheaper.
what do I do? How do I get a refund?
I’ve also paid for other trains before activating my pass. In total I’ve spent about £200 on top of my £450 interrail pass.

