Thanks for your ideas.

As it happens, my sister had sent through her mobile number and address just after the end of the auction, just as PJ suggested.

And here we are, about 10 days out and he still has never made the slightest effort to set up a time/date for collection.

I think this is just a time waster and as he is obviously a seller on ebay, with over 82,000 Feedback, I would be intrigued to know how he deals with anyone who buys from him and doesn't make an effort in 10 days or more.

Surely he won't be surprised when an unpaid item dispute is opened against him.