Participating in the McDVoice.com survey without a receipt is possible in certain cases, allowing you to share feedback about your McDonald's experience. Visit the mcdvoice.com survey website and look for an alternative participation option if no receipt code is available. Some locations may let you provide feedback using basic visit details like the store number, date, and time of your visit. Alternatively, check for promotional links or in-store instructions to join surveys without a purchase. Participating helps improve service quality and may even offer rewards, such as discounts or free items, for your valuable feedback.