How can I get the badge "BTS streak finisher"?

Answer 1

Phan The just when it's October or before update the app, and everything will be explained, how it works, etc. :)

Answer 2

BTS contest ended on 1st October.
You can't get that badge anymore.

Answer 3

Contest is over now(some months ago). Phan The You can try next time when Sololearn again announce...

Answer 4

So what do i do when it's October?

Answer 5

You may need to invent a time machine...