I signed up for this offer on their site approx. 3 weeks back. Received a letter approx. 10 days ago saying they'd processed my sub but the gift offer was no longer available. When I contacted them they said that they'd tried to get more stock but had been unable to secure any more from their supplier.
3 weeks later & they still have the offer on their website though. Unless they've found some more controllers I guess there are gonna be a lot of pretty p****d off people.
Probably best to e-mail / phoning them before signing up.