Don't worry, please first double check whether you logged into the right account, as different login methods (Google/Facebook/Email/Apple/Huawei) could create different accounts. Make sure you logged into the same account with the same way you created it.
If the problem persists, please try the steps below:
If you purchased from Google Play:
If you purchased from App Store:
1. Log into the same Apple ID with which you purchased membership.
2. Go to the Membership page on app LingoDeer, and then tap the Restore Purchase button on the upper right corner.
If you purchased on our website or still couldn't manage to access membership after trying the methods above, please directly contact firstname.lastname@example.org. We'll get back to you within 24 hours on weekdays.