Just because they're listed doesn't mean they have them. For example, I've tried to order an MXR Carbon Copy from GAK, Soundslive, and iMuso this week... all were listed as having it in stock, but they didn't. And I didn't find out until after placing the order, waiting a dew days and chasing them up. From now on I will ALWAYS email or call them first to check they have it in stock... It ended happily though, bought one on US eBay and saved around £30!
Just email GAK through the site. I don't want to in case I crumble and purchase the synth.