Walmart complaint: Cashier funtion

Walmart cashier check out becomes worse and worse. I so fed up, I’ll try to use other store chain if I can. They cut down human cashier for self-serve cashier. The check out lineup are always long. The human cashier always try to sale their walmart master card. They even hold the check out line just for the enrollment. A cashier is for ringing customer check out stuffs, not for sale or enrollment credit card! Hello, Walmart your management!?
– It’s happened to me at Meadowvale supercentre Mississauga, a cashier hold up a long check out line for master card enrollment.
– It’s just happend to me on the last shop at Erin Mills town centre Mississauga, a cashier is so focus to convince me enrolling walmart master card (even after I said NO), make mistake ringing a bag of cherries twice. I caught the mistake after leaving walmart. I have to argue with their customers service to have my money back. Luckily for me, the cherries are sold by weight, there is no way two exactly weight cherries bags, so I got my money back. But if other items no luck for me.