Cheers for the answers guys. I have a slight problem though with the 24 hours prior to kick off. I live 80 miles away and really can't afford the petrol to get there and back just to swap a ticket. I think I may just leave it.

Any family or friends you could post it to?

No. My whole family live in the black country (Halesowen) unfortunately.

Probably best to forget the upgrade and just buy a full price ticket for your mate then.

To be honest, 1905, I only told my mate there might be a chance he could get a ticket for cheap knowing my g'dad wasn't coming. But now I might as well just leave it. I doubt my mate will lose any sleep over it and it seems to upgrade the ticket means a lot of hassle, so it just means there will be one less body. Unless anyone knows an OAP that would want it?

I upgraded my daughters ticket for an adult one for the saints game about a couple of hours before kick off on Friday no problem at all.
I don't believe it makes a mockery of anything - imo she's too young for the late night games so rather than have an empty seat........