ASRock Motherboard WoWS promotion

[Razzles]

So I bought the ASRock fatality B250 Gaming K4 motherboard for my computer, and quite conveniently came with a world of warships promotion for a premium ship + 500 doubloons + 3 days premium.
Now I redeemed the serial number of my motherboard on the bonus section of the ASRock App and it gave me an exclusive game serial number for it.
What do I do with it now?
It isn't a War gaming redeemable code, so I cant use it here.
The page where it gives you instructions doesn't tell you what to do with it.
Is this fake?

I saw there was a similar one for Assassin's Creed Syndicate earlier.

Here is the instruction page for reference:
http://www.asrock.com/events/AppshopSN/WarShips/index.html

Cheers!

 

[cin19]

Sorry your MB is not in their list. Double check it, the B250 MB is Asrock Fatal1ty B250M Performance.

 

[Razzles]

Sorry your MB is not in their list. Double check it, the B250 MB is Asrock Fatal1ty B250M Performance.

Don't worry, the serial code that i got worked, however it was for new accounts on WoWS.
The motherboard came with the promotion, so i automatically assumed that it worked.
Must be in the B250 range.