What time does customer's service open?

I think about 9 am

I believe it's 8 or 9am, but if you call the store they will tell you.

Walmart store the customer service desk is open between 8am-10pm. The service desk is generally at the front of the store near the optical department. You can call 1-800-WALMART between 7am-6pm.

yam-10pm

Either 7am, 8am or 9am, I'm not too sure