Thunder Bay Police are warning people to be wary when using Kijiji, Auto Trader and eBay. Detective Constable Heidi Moore says they've received several complaints of counterfeit transactions. Local residents have posted items for sale and have been contacted by alleged buyers via email. The buyers offer the sellers more money than the item is worth and send counterfeit money orders. They ask the seller to send back a portion of the excess cash. Unfortunately the seller deposits the counterfeit money and is then responsible when the bank discovers the bogus transaction. Moore notes to always be cautious with buyers that offer you more money than your asking for.