Scammers are offering bogus Costco gift cards on social networking sites. They are hoping to direct traffic to websites hosting online surveys. The real Costco Facebook page does encourage its many fans to re-share its posts and Like the real Costco page. One of the examples pictured below has over 13,000 shares and a mind-boggling 4,500+ Facebook users have been duped into leaving a comment on what they plan to spend their $500 gift voucher on.”]
Source: https://grahamcluley.com/costco-voucher-facebook-scam/