Contact customer support and tell them you want an ACTIVATION COUNT RESET. Not all the CSRs will understand this, so you may have to keep trying to find one who does.
Adobe provides support through the Chat function on the contact page or through a phone call. There is no email support.
CHAT: Click the following to contact Adobe customer support staff for help:
https://helpx.adobe.com/contact/support.html
You must be signed in with your Adobe ID and allow cookies in your web browser for this to work. Disable any ad, pop-up, or script blockers.
This is the link to the US website. If you are not in the US, the site should redirect to the page appropriate to the region associated with your ID.
Click the chat icon at the bottom right of the page to open a chat session.

If that doesn't work, try this link, which opens a chat window directly:
https://helpx.adobe.com/contact.html?rghtup=autoOpen
PHONE: You can also search this page for a regionally appropriate phone number for customer support.
https://helpx.adobe.com/contact/phone.html