Instructions:Found this on another website.
10% off your bill when paying via PAYPAL for items bought on ebay.
States that maximum discount is $100.
Just used it and saved £1.40p on a £13.98 spend. (Saving on cost of items before P&P)
I don't post here very often so apologies if I have completely messed this up and please be gentle...
EDITED to simplify.