As we say at work, Google is your friend.
So the first thing I notice when I Google them... no apparent website. they DO have a Facebook page and a couple of Bandcamp pages show up too. Also a blogspot.com page and a few others. But nothing pops up with their own site.
So, we're talking amateur hour and not a professional outfit (at least not in any sense
I would count as professional.
Had a (very) quick look at their FB page and it looks very much fandom (contact uses a sky e-mail). Has 1400 followers, been going since 2013.
Just looking at it I'm not so sure they'll ask for money (but don't quote me on that). I only had time for a quick look so I couldn't say definitively one way or another).
My suggestion - if your interest is piqued, ask them. If not, probably nothing to lose sleep over.