Redeem Credits:
If a member has credits within your organization, they are able to redeem them during registration for a new registration form within your organization. When the registrant has reached the Payment step, a Credits to Redeem line will show on the invoice with the amount of Credits they currently have. They can apply any amount of credit up to their Available Credit Amount. This discount will be applied to the total amount of which they will pay.
The amount the registrant has redeemed will appear in your Credits table under Organization > Members > Credits.
Check Out the Following for a Overview of Credits: Member Credits | Teamlinkt Help Center