$15 to use toward Splatoon Amiibo or Plushies

[AmiiboMan]

https://otakumode.com/invite/0d3691

Register to get $10. Confirm email for another $5.

 

[Chaos_Knight]

How do you use the coupon code?

Edit: Seems you can only use if you're paying $30 or more. Damn, I just wanted 1 amiibo.