First of all thanks for joining as a member!
Secondly, check for the following:
Ensure the email you used to purchase the subscription is the same email you use to log into StudyDojo.
Ensure the payment was successfully processed (you will receive an invoice if so).
Ensure the payment is not being disputed.
If you've gone through these steps and are still encountering the issue, please feel free to reach out to support and we'll tend to it as soon as possible.