The Commerce City Colorado Walmart on 5990 Dahlia Drive has the worst customer service of any Walmart in the Denver area. I called three times to speak to the manager, Edward, and each time no one picked up, and there was no voicemail to leave a message with. Edward doesnt seem to care about how his store employees treat customers or how badly his store reflects on Walmart. Today, for the 3rd day in a row, the self checkout machines are not accepting cash. NONE OF THEM. This is leading to incredibly long lines at the 2 staffed checkout stations that take cash. There was only one staff member at the self checkout stations when I was there today, Saturday, July 11th, at 12:32 pm. She was incredibly angry and rude.  I understand that walmart workers are stressed out because of the covid pandemic, but guess what? I'm unemployed, so I'm stressed out too!  This is not a walmart problem. This is a Commerce City Walmart problem.  The store on 7101 E 128th Avenue, Brighton, CO 80652 provides a completely different experience.  The staff there are polite, and respectful, and patient given the situation we are all facing. "Edward" the manager at the Commerce City Walmart doesnt seem to care about how this stores customer service problems or how it reflects on walmart as an organization. It's sad I have to drive 15 miles and 25 minutes out of my way instead of the Walmart in Commerce City just 2 miles from my house.  I