These promotions never work for me either, and I have never had a store. I click on the links posted here, hit Accept Offer, wait for the red message of doom and then go back to waiting for the next month so I can finally relist things.

eBay are full of it when they say their promotions are "randomly" given to sellers - as far as random goes, the sellers which get the promotions will always get them while those who weren't the chosen ones don't ever get any promos. The dice are well and truly rigged here.