My positive point goes to Squarp Instruments. I had a problem with Hermod and send them an email with not too much faith for a response and not only they answer me in a couple of hours with a solution, they told me that of the problem were not fixed, I would send them the module to check it and fixed by themself.
Thats something I love about eurorack and eurorack companys. I'm still waiting for a response from Akai since 10 months.