Can we upgrade from a standard version to a deluxe version?

I receive a gift (the box with a code), and i just want to know if it’s possible to upgrade from a standard version to a deluxe version? and if yes, how can i do that?
Thank you.

I’m guessing since you posted in the PC tech support that this is an EGS code. Your best bet would probably be to contact EGS store support and ask them directly.

thank you for your answer.