CHARLESTON, W.Va. -- The Better Business Bureau is warning West Virginians about a scam that asks callers to fork over money in exchange for a supposed $117 million lottery prize.

Bureau investigator Erica Phelps said in a statement that consumers have received calls from a person identifying himself as a Better Business Bureau employee and who is listed at a Jamaican phone number. Consumers are told they've won a multimillion-dollar MGM raffle lottery and are instructed to call an 876 phone number listed in Kingston to speak with a "Wayne Kennedy," she said.

They're then asked to buy a Green Dot MoneyPak, a prepaid debit card, worth $499 at a local Walmart to collect the supposed winnings.

Phelps said MoneyPak cards are commonly used in foreign lottery scams and warned people that "you can't win a lottery you never entered."

The Better Business Bureau doesn't have an office in Jamaica and doesn't offer or work with lottery opportunities, she said.

Phelps also reminded people that lottery winners shouldn't have to pay to collect their money and warned never to reveal banking information by phone.