Mdgst1300 in Calgary

Beware of Sears poor service. I purchased a brand new white Kenmore And was delivered 3 weeks ago. Since the first time I used the oven a 3 inch section at the top of the oven door, which is made of plastic, started to discolour and has become very noticeable in just a few days of use. I am certain the oven door seal is defective, causing heat to discolour the plastic. Sears service department told me this is not covered under warranty, even though the range is only 3 weeks old. Now I have a $1400 range that looks ugly. This is the last time I buy anything from Sears.