vestel makes a lot of own branded appliances for other people. they are a budget brand so not high when it comes to longevity and reliability
you have to understand what your paying for. Your budget of £350 is not high enough to get a decent product.
take out the VAT and your paying £291 for the appliance. now strip out retailers profit and transport around the world. then take out money for the manufacturers profits and money to not only run a factory pay for research on new products.
that does not leave a lot to actually pay for quality components to build your dishwasher
Hence appliances are not as relaible as they were
Dave