Bialetti Mukka users?

[Chainsaw13]

Anyone else have the Bialetti Mukka pot? It's the one for making cappucino or cafe american. I'm currently playing email tag with Bialetti's service department. My fairly new Mukka is having an issue with the valve not sealing properly. Instead of building pressure it'll leak the still brewing coffee into the upper container. Eventually it'll build enough pressure to pop the valve and steam the liquid in the upper pot. But there's not enough at that point and I'm left with a weakish, luke warm latte.

I'm waiting to hear from Bialetti but figured I'd see if anyone here had experiences like this.