Hello AbdallahElQattan,
I am sorry for the delayed response and for the trouble you had while using the Document Cloud service.
I have checked the records with your Adobe ID(email) which you have used to sign-in on Adobe forums and couldn't find any subscription/license of Adobe Export PDF associated with the email address and there were no transaction details found with the email address.
As you mentioned that you tried subscribing the services through Google Play store, please check the subscription status once from the Play store whether the purchase went through successfully or not. If there was any problem with the payment, you may have to contact Google Support team Google Help
If you try to export the PDF file or will try to use the services, you may get a message to resubscribe.
Have you purchased the service using a different email address? If yes, would you mind sharing the email address by Private message only so that I can check the details and assist you? To send a private message, please take help from the article How Do I Send Private Message | Adobe Community
If you are able to locate the email address through which you subscribed Adobe ExportPDF service and want to access the services on a desktop machine, then you can use the URL https://documentcloud.adobe.com/ https://documentcloud.adobe.com/
Sign-in with your email address and access the services.
You may also use the freeware Adobe Reader application on your desktop machine to access the services. Download and install Adobe Reader application, then sign-in with the email address associated with the license/subscription and access the services.
To download Adobe Reader: Adobe - Adobe Acrobat Reader DC Distribution
If you wish to access the Adobe ExportPDF service on your mobile device, then download Adobe Reader mobile application Acrobat mobile app, PDF reader for iPad, iPhone, Android | Adobe Document Cloud
Sign in with the email address through which you purchased the license and access the Adobe ExportPDF service.
We're here to help, just need more information.
Thanks,
Anand Sri.