Q. Is my Wal-mart credit card OK to use at Sam’s Club, too?
Yes. Walmart credit cards are acceptable forms of payment at Sam’s Club stores. Note, however, that the Walmart store card can not be used on SamsClub.com. (The Walmart Discover Card is fine at SamsClub.com.)
In addition, the Sam’s Club credit card can be used inside Walmart stores (but not on Walmart.com).