Costco shoppers in Washington may be eligible to receive a cash payout after the retailer agreed to settle a class action lawsuit accusing the retailer of sending misleading promotional emails advertising limited-time offers. The lawsuit alleges Costco violated Washington's Commercial Electronic Mail Act (CEMA), which regulates commercial email marketing. However, the actual payout from the settlement is currently unknown and will depend on the number of valid claims submitted. To receive a share of the settlement, eligible class members must submit a claim form by Aug. 24, 2026. Each class member may submit only one claim form, regardless of how many qualifying promotional emails they received from Costco.