You have to send an email that you buy the game to " service@fymmg.com " that you want the DLC key
thank you
I've done this 3 times and no response, purchased the game but cannot access DLC!
If you buy the game then join discord in there will have instruction for your case
You have to send the email that you purchase the game and tape your name in itch. io along with it
Did all of that several times and no response from service@fymmg.com