Complete the quest chain required to unlock Ref
Reach the required trader level or progression milestone tied to Ref
Finish the prerequisite Arena-related tasks, if applicable
Sync your Escape from Tarkov and Arena accounts
Link your Battlestate Games account correctly
Check that your account is eligible for Ref access
Restart the game after meeting the requirements
Verify the unlock status in the trader menu
Contact Battlestate support if Ref still does not appear