Yes. To use the benefit, the email on your Letswork account must match the email linked to your Ziina account.
If the emails don’t match, you have two options:
Contact Letswork Support to update the email on your Letswork account, or
Update your email in the Ziina app so both accounts use the same email.
Once the emails match, Letswork will verify your account and apply your monthly credits automatically.