I have made subscription for a month. But I cannot access the services such as compression of files

Not working for me either.  I have Adobe Pro. Very frustrating that I pay for this service and it won't let me modify 

If your monthly subscription is active but file compression is still unavailable, I’d first check whether the subscription is linked to the correct Adobe account. Signing out and back in or restoring the purchase may also help. If the issue continues, Adobe Support should be able to verify the subscription status.

Hello @Lavish_friendship1462

I hope you are doing well, and thanks for reaching out. I'm sorry for the trouble. That's frustrating when you're paying for a plan and can't use the features.

I have checked your Adobe account linked with the Adobe ID you are using on this community and found that you have just purchased the plan for Adobe Scan Premium, please try to signout of the application, reboot the device and re-login with the same Adobe ID and see if that helps. 
You may also try to restore the purchase, tap on the profile icon > Subscriptions > Restore Purchase
Let us know how it goes. 

Regards,
Amal