Slow response from companies is one of the main reasons I have a twitter account at all. Start spamming them with pictures of the broken stuff if you're not getting satisfactory results.
I get that they're not massive like GM or Honda, but the same issue identified across a bunch of frames, that's what a recall is for not a limited time contact us and hope for a fix sometime.
I had a company just not return my calls or emails at all, but as soon as I lit up their twitter, I got someone calling me real quick. It's a shame that's what it comes to in some situations but you have to do what the situation demands.
That said, I have gotten replies on twitter from Morgan and have had emails go entirely unanswered (until I tweeted, can someone check the email please.)
Either way good luck, and anyone doing DIY fixes on stuff like this, please post photos or youtube or something. I hope to never be in that situation as it would be heartbreaking I'm sure.