Hello @WBremner,
I hope you are doing well, and thank you for reaching out. We're sorry for the trouble you had with the app and the services.
We checked and verified your Adobe ID (email), which you have used to log in to the community, and see that you have an active subscription to Acrobat Premium.
Please ensure that you are using the same email address to login into the Acrobat Reader Mobile app. To check the subscription status, you can visit this article: https://adobe.ly/4tUFd1U
Also, check this article to restore the subscription and purchase: https://adobe.ly/4f2ixZQ
Let us know how it goes.
Regards,
Anand Sri