AEG 5 burner gas stove

We bought a 5 burner gas stove electric oven in December. From day one we had problems with the oven. The company we bought it from was very helpful and tried to solve the issue. An agent for AEG was send out to have a look at the stove and gave us a long story on the stove cannot be linked to the earth leakage, according to the new building regulations. We got an electrician out to have a look at the stove and he told us that the upper element is drawing moist that is why it is tripping the power and needs to be replaced. After 4 months we are still battling to get an answer from AEG on how they are going to solve this problem. To be honest I will stay away from ANY AEG products in future. The after sales service is non existing.