Called agency and told my oven not working. So they arranged appointment with cbdomestic. Came change part. Start heating, don't say nothing and leave. After that all baking undercooked. So I contact agency again they arranged company again. Engineering came done test and said it ok. Only you have to put temperature higher from 5 to 8 degrees. Nothing told about that at first visit. Now I have invoice to pay because: no fault found, oven heating. Temperature with acceptable range as specified by manufacturer. So unhappy. If everything was done correctly at first visit, information what can happen, the review be different.