Change of ticket...

Hi

I purchased weekend tickets for myself and a friend a while back and he has just let me know that due to him breaking his ankle a few weeks ago he won't be able to attend. I paid for both through my own paypal and have the emails etc but I put his ticket into his name (at the time i thought the tickets would be posted!)

My girlfriend is interested in having his ticket to save me having to go on my own. Is there anyway I can update your records on the door to show this change or will the two paypal notifications, bank card used etc I bring with me be sufficient to give me the two tickets on the door??

Regards

Mat