CS at Denton Walmart Supercenters is open from 7 AM till 8 PM Monday thru Friday. Not sure about weekends. You could Google them. Just put "Walmart Customer Service hours, Denton TX" in the Google search box and a summary of all Denton Walmarts will pop up with addresses phone numbers, hours open, etc.
About 350
Did a Google search and time is usually 8am-10pm.
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