I did send off email to St Martins Press and got a receipt acknowledgement, but nothing further so far.
I also sent email to Amazon and got a reply back this morning which completely missed the point - they didn't take the time to read the mail.
So I called and talked to an unctious-toned rep this morning who supposedly was on the Kindle Support team and he'd never heard of Topaz formatting. When I tried to tell him the effect it had and that it ended up undermining their hardware, he assured me that their engineering department reviewed all formatting and they must feel that it falls within permissible perimeters.
So, boycotting is the only solution!!
Jim