There are several common reasons for not receiving a Kroger survey code. One possibility is that your receipt may not be eligible, as only specific purchases qualify for the survey. Another reason could be a missing or faded survey code on the receipt itself. Also, if the receipt is older than seven days, it may no longer be valid for the survey. Additionally, technical issues or miscommunication between the store and the system could result in no code being issued. For more details, visit kroger.com/feedback to check the rules and eligibility for the Kroger survey.