A First - One of my paintings goes on sale on eBay

A first to my knowledge anyway, somebody puts up one of my paintings for sale on eBay at £1495.00. It is actually the second oil painting I ever did and is called "River Diner" dating from 2005. It has just occurred to me that shouldn't I be due a portion of the sale price as Artists Resale Rights would surely apply to this sale (if they sell it!)?  I can't imagine the seller, if I could find them, would be very amenable to giving me a proportion of their sale price money though....