> for many years, consumers have reported tens of millions of dollars annually in fraud-induced money transfers processed by Walmart employees. [...] Walmart is well aware that telemarketing and other mass marketing frauds, such as “grandparent” scams, lottery scams, and government agent impersonator scams, induce people to use Walmart’s money transfer services to send money to domestic and international fraud rings.
Sounds like the typical "Hello, this is the IRS calling" or "We will shut off your electricity soon" telemarketing scams; they tell the victim to send money to them (the scammers) using Walmart's services.