I want them to release my subscription
First, I’m an Avast user and not an Avast Team member.
The most common reason for this is entering an incorrect email address.
Temporary Contact Avast
- Contact Avast Support - Avast Phone Number, and Chat Support Account and Billing - Billing Issues
Or
CONTACT US - You could start here Home | Official Avast Support select sales and billing and follow it through. This is going to be very much the same as the above link.