User blog comment:Linathan/Guide: How to claim your FREE unit (Brave Frontier 2nd Anniversary) & Lucia/@comment-181.171.210.217-20151103055223/@comment-181.171.210.217-20151103224428

You got to Menu > Help (Bottom left) > Contact Us (Top right red button) > Others > "I have not found the topic for my inquiry" > "Nope, I still haven't found the answer I was looking for"

NOTE: I use IPhone, so I don't know if it's the same for all devices.

There, you'll have to fill in the details (some are already filled in, like device or player id), like "Topic of concern", "Specific concern" and your mail.

For example, in my case I put:

Topic of concern: Event: Free Unit of choice

Specific concern: Confirmation

You'll get a mail confirmation almost immediatly and they should answer within 2 days. I'm still waitinf for the answer 16 hours later, but when I had an issue with the Barienna code they had answered within a couple of hours.

There's that, tried to be as specoific as possible.