It happened to me and my friend aswell. We're on "S1: Naruto" server. Always checked-in... :|
http://i.imgur.com/AF9KcZT.jpg

Your server ID : 1
UID : 200000082997866
Character name : TerinKimura
Screenshot : http://i.imgur.com/3885e8A.jpg

And I'm also checking in for my friend who doesn't have his PC for now. Can you check that for him too?

Server ID: 1
UID: 200000082100313
Character name: YukiMayuri
Screenshot: http://i.imgur.com/AKWkr9g.jpg

So basically we've received 5000 coins? That's it?

Haven't got the Full attendance reward either.
My friends account:
Server ID: 1
UID: 200000082100313
Character name: YukiMayuri
Screenshot: http://i.imgur.com/g4kyyVF.jpg

My account:
Your server ID : 1
UID : 200000082997866
Character name : TerinKimura
Screenshot: http://i.imgur.com/XOR89jz.jpg