Third, ask yourself if you recognize the companies, services, charges and rates on your bill.
Fourth, do not ignore small charges, which can add up to big amounts. Crammers try to go undetected by submitting $1.99 or $2.99 charges to tens of thousands of consumers, according to the FCC.
If you are the victim of cramming, ask the company for an explanation and ask for an adjustment. But if that does not work, file a complaint with the FCC for free at www.fcc.gov/complaints or call 1-888-CALL-FCC (1-888-225-5322) voice or 1-888-TELL-FCC (1-888-835-5322) TTY.