Big corporations like Walmart don't always make it easy to get in touch. Here's how to find a real-live human to talk to.

Buying groceries at Walmart may be convenient, but it's not without its issues. Here are the top customer complaints about grocery shopping at Walmart.

Add Yahoo as a preferred source to see more of our stories on Google. What to do when a rollback goes awry. After the frenzy of Black Friday and Cyber Monday, issues with orders, returns, or questions ...