Requires application restore

Hello. I need to restore the application. After deleting a team member, the app is gone. It is not possible to do this on your own. Support is not responding. I have already sent three requests. If there is support in this forum please help me.

Support has not been responding to my requests as well which is leaving me to depression as my publish app of a pro plan has been downgraded to a free plan within 24 hrs of upgrading while i have users with the mobile app already.

I hope someone respond here.