If you don’t care to talk to PCH scammers for a long bait, you can still help in the efforts to take them down by leaving lots of messages to fill up their voicemail and waste their time.
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If you use Google Voice, you can turn off your caller ID to call toll numbers anonymously - making it impossible for them to block your number.
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Here’s a soundboard I made which you are welcome to use to fill up their voicemail. https://www.soundboard.com/sb/pchvoicemails