I've got mine and my mate's tickets in my wallet and vice versa.

So if I can't go he can just scan anyone in using my ticket from his wallet and if he can't go I can scan anyone in using his ticket from my wallet.

Been a lot of scaremongering over all this but it appears there's nothing to worry about really.

Similarly I bought my roma ticket but my mate's lad is using it and he's not a member.

I just forwarded my email to my mate and he downloaded the ticket to his phone.

Easy peasy.