Can you pay electric bill at Walmart?
You could. If you brought your utility bill (or any other bill, for that matter) and you brought your checkbook, you could write a check to pay the bill, although you'd probably need to find somewhere else to mail it from. If your utility or other creditor offers an online payment option, and your phone was able to connect to the internet while you were at Walmart, you could pay the bill while at Walmart. Why would you want to do so? Presumably you went to Walmart to shop for products that they sell.