A limited-time offer is available for new Sam's Club members in the US. For $25, you can get a one-year membership with auto-renewal, which is 50% off the usual price of $50. This deal is only open to new members or those whose membership lapsed more than six months ago. The membership will expire one year from activation and automatically renew at the full price unless canceled.
To take advantage of this offer, you must redeem your unique code within 30 days. You can sign up for the membership through StackSocial, which is offering this deal in partnership with Sam's Club.
Source: https://www.zdnet.com/article/buy-a-sams-club-membership-for-25-right-now-heres-how/