No after-sales service (and poor quality)

Extremely unhappy ex-customer here: Three years ago we redid our kitchen, and fitted an AEG oven, under the mistaken impression that it would be a quality product made by an honourable company. Last month the inner glass of the oven door disintegrated while the oven was heating up, indicating either poor design (stress caused by the mounting) or poor quality control (improper tempering of the glass itself). As if this was not bad enough, I then had to learn that this specific model of oven is not made any more, AND THEREFORE NO SPARES ARE AVAILABLE. This is of course quite unacceptable.<br> I requested to speak to someone higher up in the chain, and was promised that he would call me back. Weeks later