That sounds like a nightmare. Googles automated system often flags original listings as duplicates when a competitor creates a similar profile, leading to an unfair suspension.
The first thing you need to do is gather all your legal business proof like utility bills, business registration, and photos of your permanent signage. Youll need these for the reinstatement appeal. While you wait for Google to review your case, Id also suggest reporting the fake profile for impersonation through the Business Redressal Complaint Form. Its a bit of a slow process, but once a human at Google sees the conflicting documentation, they are usually good about restoring the original and nuking the fake one.