[2021] [Keys/Codes]Activation Key / Redeem Code is Not Valid

Hello Camelion.__., where did you purchase the game key code from?

Rainbow Six purchased from Steam or Ubisoft Connect does not usually require a game key code as the game is pushed directly to your account after purchasing from these store fronts.

For this reason, you may need to contact the original retailer for the key is it is not valid. Was the key part of a promotion with a PC part?