A refund is possible if you cannot start the game or encounter systemic issues.
If you ordered without realizing it was an account, you can get a refund.
If you have not changed the account information, not started the game, not advanced the game playtime, and simply wish to return, a refund is definitely possible.
Conditions Where a Refund Is Not Possible
A refund is not possible if you change the account details, link the account to a different platform, or make in-game purchases in special editions.