When I lived in student halls my ticket was signed for by the security guard at the main door and didn’t bring it up to my flat. I had to beg See tickets to re-issue me another ticket, they told me it wasn’t their responsibility because it had been signed for. After speaking to about 5 different people and explaining how I couldn’t possibly have signed for my ticket because all post went to a security office they gave in and left me a ticket at the box office on site. It was very scary going to the festival without a ticket though!