Ensure you are signed into your Microsoft Store App with same account you subscribed with
Under the Start Menu, find the Microsoft store app, sign in with the correct account then restart Xodo.
Be sure to sign in with the same account that purchased Xodo Pro
Ensure payment was successful
https://account.microsoft.com/billing/orders/
Still having trouble? Please contact us at support@xodo.com and we will help sort it out.