I've responded to Google directly and did not approve their requests, but Google needs to block their account. They are going around to several unrelated businesses and claiming ownership of businesses they have no relation to.
@JoyHawkins I'm skeptical that reporting these people will do much in this case; in the last half year or so I , too, have started seeing several repeated "requests" to claim ownership of profiles I manage, all by obviously spammy gmail addresses. That "report" form looks like it applies more to issues with a known "agency".
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