We are sorry to hear that you did not get the expected results out of Vigoro Lawn Fertilizer. The most common reason that grass does not respond to fertilizer is an imbalance in the soil pH. We recommend performing a soil pH test. We want you to be confident in our products. For this reason, we offer a product guarantee to our consumers. At your earliest convenience, please call us and refer to your review to see what can be done. Our phone number is 877-220-3089.