Who called me, what do they really want?

Number (415) 808-2442 called me then left a voicemail, they knew my name and it was an actual person named Stephanie. Said they were calling about something "critical" about my account, I recently called about. I don't recall any of that, i looked up the number and saw it was from NANPA, San... show more Number (415) 808-2442 called me then left a voicemail, they knew my name and it was an actual person named Stephanie.

Said they were calling about something "critical" about my account, I recently called about.

I don't recall any of that, i looked up the number and saw it was from NANPA, San Fransisco

Who the hell are they and what do they do?
Update: This is not my number ffs. Who is stupid enough to do that? It's the hags from California's number.
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