Competitor took over one of my client's GBP

[nicoco]

One of our competitors has taken control of one of my client's Google My Business account, and there is no option to request ownership back. How can I retake control of the listing and prevent this from happening again.

 

[Colan Nielsen]

Have you tried following the steps outlined in this help center document?

https://support.google.com/business/answer/4566671?hl=en