Refrigerator light whirlpool designerstyle. How do you remove the bulb that has burned out. its a

Question

How do you remove the bulb that has burned out. its a whirlpool designerstyle with the freezer on the top. The recepticle for the bulb is really weird its white plastic and has a ridge on the backside. Try as I might I cannot get the bulb to unscrew. Is there some other way that it is supposed to be removed? Seems kinda silly to call a service man for a light bulb change. I don't have a manual. the refrig was in the house when I bought it. any help is appreciated