Columbia Gas has issued a warning that scammers are apparently leaving fake notes on customers' doors in the Merrimack Valley.
The scam alert was posted Saturday afternoon to the Columbia Gas of Massachusetts Twitter page. According to the tweet, the scam is a fake note left on residences' doors.
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The company says its door hangers have its logo and phone number, unlike the fake notes.
They ask anyone who isn't sure about a note, email, phone call or person claiming to be affiliated with the company to call Columbia Gas at 1-866-388-3239.