Here's what I just read on a link I clicked while reading through this thread:
From a senior Gratis representative: Due to suspicion of frauding the ebay offer, Gratis Internet has had to pull the eBay offer down. It is unclear right now whether or not this offer will come back any time soon. Please try one of the other offers listed on the site... and remember only try the one(s) you are seriously interested in trying. Gratis Internet will go away if enough people are not really interested in the advertisers and just cancel right away...