Folsom police are warning city residents to be watch out for what they say are phony invoices in the mail.
The alleged scam generated from Southern California involves an entity named UST Inc. or UST Development, police said. Officers say UST has sent bogus invoices to Folsom businesses.
Even the Folsom police and fire departments got the invoices.
The invoice states that it is "not an invoice for services rendered but for preventative maintenance on your telephone system." The invoice also states that a total of $350 is due, police said.
Officers said citizens should carefully review any invoice before sending payment. Call the police department at (916) 355-7231 if there are questions about the authenticity of bills.