Thanks guys for the supportive messages. I will definitely keep you updated on developments.
As newby owners we expected a certain amount of getting it wrong, and the aesthetic things we could have lived with - but when it comes to life threatening situations, that goes too far.
Bit disheartening to hear that it isn't all that unusual in the industry in general.
Hopefully as more and more disatisfied owners take action, the boat builders will learn that a good profitable long term business depends on getting it right first time and dealing properly with problems if they occur.