Hi all,
The official Facebook page (Redirecting... ) recently ran a comp, in which 3 random participants were awarded a prize of 500 gems.
I’ve been given a coupon code to redeem the prize, however I can’t locate anywhere to enter it, either on the app or here on the website; and I’ve also been unable to find any support documentation to indicate where to look.
When I asked the Facebook moderator, they pointed me to the iOS gift card redemption documentation. 
Can anyone point me in the right direction?