Well that would cost him a lot of money for the court case to get the repuired legal permission...His latest text:
"Yes coming on Friday and when we do the work and you have paid the final invoice we will try to claim I don't understand why you feel the need to ask so many questions I just haven't got the time to answer all these questions should be asked before the work as started. And the rewire is our property until it's paid so if there is any complications I'll rip the wires back out"
But not an avenue I'd wish you to go down, it would be very messy.