Recently purchased cooker, just out of 30days return policy. Bought from Argos. The seal on door broke off after oven only used twice. The heat in oven is not consistent, the oven overcooks one side, and you have to turn dish around. My Yorkshire puddings flopped with turning, soy did my Cake. I explained this to the engineer who fixed the door seal. He said this will happen to Yorkshire puds and suggest when the cake is overcooked one side, not to open the door to turn cake, but to cut off the overcooked area!! Am I really suppose to pay £699.00 for a cooker I cannot use for baking?