Where do i return kirkland water bottles for return credit

Costco customer service is where you return anything and it's always located at the exit hall or door of any Costco so go to the exit where everyone is leaving and ask for customer service as usual Lee a little door on the side that lets you in opposite the outgoing traffic and that is where you return things for a credit

Most Costco items can be returned in Costco at returns usually near the entrance

Im not sure. Im sorry