How Sam's Cash works (from a Sam's employee)
Sam's cash is given monthly from two separate sources.
Source one- Plus membership rewards. 2% back on most purchases in store (excluding Gift cards, alcohol, tobacco, gas, prescriptions, dairy milk, hearing aids, and optical purchases)
Source two- Sam's Club Credit card. 5% back on gas (up to the first $6000 spent- 1% back after that. 3% back on dining and takeout. 1% back everywhere else. 3% back in store on online at Sam's Club only if a plus membership (1% back for regular membership)- (the above exclusions does not count here- it is a straight 3%).