 Beginning August 19th, the flat rate fee will be $8. The pushback's been growing on social media. One ex-post accuses the big box chain of taking away benefits. Others threaten to take their business to Costco and even file a class action lawsuit. Sam's insists it'll make it easier to get what you want the way and time you want. Sam's memberships begin at $50 a year. Deborah Rodriguez, CBS News.