Very very annoying 'feature' of the paypal/ebay collective. Happened to me once about 2.5 years ago.. .The way i got them back.... i added them to favourites, some months later they posted something on ebay of about 2.5x the value, using my parents ebay account i purchased said item and then repaid the 'lost in post favour'. After some *uck ups by city link, for the second time, not being able to prove it was signed for by me i got the money via paypal.
2 wrongs defiantly make it right in this case
I know a few people that have been stung by this over the past few years.