Walmart's delivery platform, Spark, has tripled its delivery-driver workforce over the past year. Insider spoke to six Spark drivers across the US and a Walmart employee who works with Spark drivers. "We encourage drivers to report any concerns to Spark Driver platform driver support so we can investigate and take the appropriate action." Earlier this year, Spark drivers protested at a Walmart Supercenter in Illinois over what they described as a prevalence of drivers who use bots on Spark. Several Spark drivers said that different stores they deliver for have different policies for checking drivers' IDs before dispensing orders.

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Persons: Mike Del Rio, Del Rio, he'd, he's, Del, they've, Scott Olson, it's, John David Rainey, Spark, Joseph, Gregory Carr, Yeji Jesse Lee, Jeffrey Greenberg, They're, we're, We'll, Jessica, Alex Bitter Organizations: Walmart, Service, Walmart's, US, Insider, Universal, Getty Locations: Wall, Silicon, Utah, Del Rio, New Jersey, Mississippi, Texas, Illinois, North Texas, Florida