If your Lowe's survey code doesn't work, first check that you entered the code exactly as printed on your receipt. Ensure the receipt is still within the valid survey period, as expired codes may no longer be accepted. Try using a different browser, clearing your cache, or accessing the survey from another device. If the problem continues, verify that you are visiting the official survey page at www.lowes.com/survey. You can also contact Lowe's customer support for assistance with invalid or unreadable survey codes. Keeping your receipt handy will help resolve the issue more quickly and efficiently.