Purchased 3 days ago via Applepay. Tried to activate premium version since to no avail. Tried several new IDs and passwords and still in trial version.
The account *****pay@icloud.com runs on the Basic version of Adobe Express and does not hold any subscriptions. Please log in using the correct email address you've subscribed with.
I hope this has helped shed some light on your situation.
We're here to help should you have further questions or encounter any issues.