Well it's SORT OF a good point. You'll only get 1/19th of your ST value back. But better than nowt I suppose. On the plus side, you'll be able to flog the second of the two guest tickets at whatever price you want to somebody of your acquaintance that you can keep a very close eye on, seeing as...
Maybe try the ticket office first. They may well be sympathetic to your circumstances. Failing that, the ticket portal - tho you'll no doubt gave to take a financial hit on that. Good luck, and nice one trying to do the right thing by your brother :thumbsup: