Call came to a google voice number claiming it was IRS and threatened legal action.
Zerogummi's profile and activity

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Cold call claiming car warranties about to expire and they want you to speak with them to extend the warranty. Total garbage.
Text message money making scam
Calling about student loan. Hung up when I called them out as I gave no student loan debt.
Call about lower student loan.
Addressed me dynamic name offering to make $4500 a month.
Text saying within 48 you could be making serious money. Do not reply to this text.
Work from home scam. Claiming 5000 to 200,000 monthly income working from home. Numbers like this are always scam level.
Very harassing behavior from their collections team. Calls start just before bill is due.
This collector will call 5 to 10 times a day. Half the time they say nothing. A quarter of the time they refuse to identify themselves. The other quarter they ask for someone you've never heard of.
home security solicitation
do not provide why they are collecting. ask for sensitive personal information about you.
They have started calling my number every day. In some cases many times a day.
scare tactic collections. they will ask for your birthday to verify if you are the person they are trying to contact. that's a good point to tell them you don't give out that kind of information to an unknown party and then terminate the call. you're never in debt with a collection agency. it's their fault for buying your debt off someone else.
CSB
CSB systems. bill collector.