Google My Business suspension is when your business listing is no longer visible on Google and Google Maps or another public person you have lost control of your listing your business listing will be “unverified” or you can’t manage it.
Main Reason of business suspension in Google
1, Multiple business listings in the same address locations
2, changes in your business
name address phone number, website URL
Management changed or ownership transfer
3, negative review and your negative review reply response from your side
4, It is also possible for users to report listing on google maps or search through suggesting and edit feature
5, never create a duplicate listing
Do not repeat the request form again if you did once
Fill out the reinstatement form
https://support.google.com/business/troubleshooter/2690129?hl=en