Some Walmart Spark drivers are getting hundreds of dollars in tips they never received due to the retailer's buggy system

• Walmart is paying Spark drivers for past tips after a "system issue."
• Some drivers are getting hundreds of dollars in tips that they should've been paid for past orders.
• Tips have been a big issue for gig workers, who say they deal with "tip baiting" from customers.

Some drivers for Walmart's Spark delivery service are now getting hundreds of dollars in tips that they were owed after the retailer fixed a glitch.