I bought three adafruit feather fona boards. One was working as expected, but the other two weren't recognized by my pc (since one was recognized correctly, it can't be a driver issue...). So I wrote a post in their forum (which is the only official kind of support they offer) but got no response. When sending an email, they only point you to the forums and that the will tell their support staff to have a look at my post. But, of course, nothing happened and my next mail was simply ignored. Worst customer experience ever - every shop on aliexpress has better customer support...
