Customers can receive a free 4-count MacroBar Multipack valued up to $11 by purchasing it at Walmart or Target, then uploading their receipt to Sampoll. Once verified, the cash-back will be provided through Venmo or PayPal. This offer is available until supplies last and is limited to one per household. 

 Sampoll is offering a free 4-count MacroBar Multipack after a cash-back rebate. This offer is valid for purchases at Walmart or Target, and participants must submit their receipt to receive reimbursement via Venmo or PayPal.