This isn't a big deal to me, just curious since I nagged my friends into using it, but I used the DDO facebook app to post my referral link, and 3 friends used it to sign up. (well, 2 friends and a brother.) Out of those 3, I only got credit for one. All 3 used that link, I made sure of it on my brother's computer (he's not the one, unfortunately)
The one I got credit for was actually the last one to use it, he did it a day later. I don't know about the other 2 but my on my brother's computer the sign-up page, while having the exact same address in the address bar, looked very different from the one I got when I clicked the link myself. The page it brought him to didn't ask for a community account name and password, and had a different background. It was the exact same address, and the account was created and used to log into the game.
I'm just curious if anyone else is missing referral credit or having this problem, and if anyone knows if there's any hope of fixing it (probably not since they already made the accounts and it didn't show up)