registration code missing

it’s been so long (since march) that i bought GSB, and i have never tried playing online, i can’t seem to locate my registration code is there any way to locate it? thanks so much-Jan

Who did you buy the game through ?

If you went throught the website you should have recieved an email from BMT Micro confirming your purchase and it would also have the reg code. (i am unsure about steam)