Go to Dashboard > Redeem and enter the code. The page reads: enter a partner code to unlock exclusive products, or an enterprise seat code to join a seat.

The two formats:

• Partner codes look like `DNR-6742069`. They come with hardware from an official DNR partner and unlock that partner's products on your account.
• Seat codes look like `SEAT-XXXX-XXXX`. They join you to a seat on an Enterprise membership.

Case does not matter for either.

Rules worth knowing:

• Each partner code can be redeemed once per account.
• A code can be reported as inactive, expired, or at its redemption cap. Those are all real states, so if you see one of them the code itself is the problem rather than your account.
• Removing a redemption loses access to that partner's products.

A partner code is not a discount. If you are looking for money off, that is a creator code, which is a different thing entirely and gives 25% off your first payment.

Owning partner hardware can also grant certain plugin features to your account independently of your tier. Your plugin's Home page shows what you actually have.