Yes, you can still participate in the www.mcdvoice.com survey even without a receipt, but with some limitations. Normally, a recent receipt with a survey code is required to access the McDVoice survey. However, some McDonald's locations allow customers to take the survey without a code by selecting the "I do not have a survey code" option. You will need to provide basic visit details ... https://mcdvoice-com-survey.com/