Product under guarantee but not exchangable

I would like to complain as my Orion Airfryers lever/button on the draw broke. This is a crucial function for the airfryer to go on if you push in the draw. The product is still under guarantee and I have it for less than six months. The employees labeled it as customer negligence. How else can you close and open the draw. The first employee was quick to say we dropped the draw. Who in heavens name makes that kind of assumptions and i told her it never happened. They later said they can send the product it and request a new drsw that i have to pay for. Why should i pay, for one its not my fault, 2. How must i know how it broke if i only use it as it shoul be. 3. Why do i have to pay for a prduct still under guarantee. They making excuses so that the guarantee expires