When you exchange kamas for ogrines at the DOFUS Kama Exchange (KE), the ogrines you receive will be linked to your account. This is also the case with ogrines purchased on Steam with real money.
Linked ogrines can no longer be used on the KE. However, they are still valid for subscriptions, item purchases and even the use of services in games that accept ogrines.
Careful, though, as any ogrines obtained from the KE expire after 90 days.
These restrictions are necessary to avoid speculation on the Kama Exchange and keep the economy of your favorite games in good health!