Yes, if you're a team admin or the organization owner. The credit goes to the team wallet, and other team members get "Only team admins can perform this action".
With the team shown in the banner, go to Credit Balance, then Coupons, type the code in the Coupon Code field and click Use Coupon.
Each person can redeem a code once, personally or for a team, and each team once.
A code issued only to your account works only in Personal. In a team workspace it returns "Coupon not exists", so use Switch Workspace in the banner or Switch to Personal on the Organizations page.
Some coupons only work with specific models, and coupon-paid charges show as PAYMENT (COUPON) on Transactions.
Still not working? Send us the code and a screenshot of the error. See How do I use a coupon code? and How do organizations and teams work?