Herridav, Thank you for taking the time to contact Bemis Manufacturing. We apologize for any inconvenience you have had with our product! We manufacture our toilet seats per the industry standard sizing, of which our engineers have determined only one set of bumpers is needed to accommodate most bowls. Some toilet bowl manufacturers include unique slants or designs in their products, of which our toilet seats cannot always accommodate. Our wooden seats only feature one set, whereas some of our plastic seats feature two sets so this may be an alternative option. All our toilet seats carry a one year manufacturing defect warranty, so if the seat is within one year, you may bring it back to the place of purchase for an immediate warranty replacement. Most stores have their own return/refund policy, so please keep in mind you are wanting to warranty the receipt rather than return it. We have this as a contract agreement with the Home Depot corporate office, in which they are to replace the seat at no cost to you when within the one year. Simply place the seat in a plastic bag for sanitary purposes, they will note the defect, match the model and send you home with a new seat a no cost, as well as the defective once since they are not require to handle or keep that toilet seat. You may have the store contact us at 888.722.6488 reference CASE# 124173 for any questions or concerns. Kindest Regards, Church Customer Service.