I understand that your tenant has been affected by the tenant inactivity limits and I am sorry to hear about that.
This type of situations fit under the description of this Knowledge Base Article - Auth0 Tenant Deletion Due to Inactivity, so if you think that your tenant has been impacted outside of the conditions presented in the article, you can send a direct Message to @support group including a short description of the issue, your account’s email address and the tenant’s name, since I have provided you the level of access needed in order to send us a message there.