Walmart.co 702 SW 8th St

My card was charged hundreds of dollars from Walmart.com 702 SW 8th St BENTON VILLE AR. I live in Florida, and I never buy from Walmart.com. I believe this is an inside operation, meaning Walmart employees. It also seems to be an operation in many stores. When you go to self-checkout at Walmart, and the register freezes, and the employee goes into the machine and gets a piece of paper, and scans it in, tell the employee to give you that piece of paper. Don't let them keep it. Nowadays, you cannot trust anyone.