Yes, most products come with some sort of warranty. For example, Ceasarstone quartz comes with a lifetime warranty against defects, and Rev-A-Shelf products come with a 30 day warranty against defects.
Please bring your invoice, packing slip, or order number with you to the warehouse at the back of the building. Somebody there will help you process the return or exchange.
Any returns must be approved by the warehouse supervisor, and then someone will fill out a return slip that you must bring to the salesperson who sold you the cabinets to have the purchase price filled in, and then the return slip can be given to accounting for any applicable refund.