The U.S. Federal Trade Commission announced checks totaling more than $934,000 have been mailed to more than 20,000 Vroom customers harmed by violations of rules and regulations intended to protect used car buyers.

The announcement follows a settlement reached with Vroom Inc. in July, six months after the Houston-based online retailer stopped buying and selling vehicles. Acting on a series of consumer complaints, FTC investigators determined Vroom failed to follow the federal Used Car Rule, Pre-Sale Availability Rule and Mail, Internet and Telephone Order Rule.

“The FTC’s complaint alleged the company misrepresented that it thoroughly examined all vehicles before listing them for sale and failed to obtain consumers’ consent to shipment delays or provide prompt refunds to consumers when cars weren’t delivered in the time promised,” the agency’s announcement states, in part.

Read more at FTC.gov