The site is not mobile friendly(doesn't fit on my screen)! maybe you should take some time and improve the site a bit. good luck with your site.
I think no need mobile version.. because many players use PC for gambling. this is 85% of all players
professional players not use mobile.
You're right that desktop users are more than mobile users but responsive sites are having a big advantage to those that aren't. If you are an owner of a site, you'll lose some possible users because you're thinking that way. Owner should think all possible way of attracting users and implement it as much as he can.
Anyway, @OP your site is new but you seem to have complete details (FAQ, TOS, Support, even social pages) which is nice. Not all new sites have them until users look for it.
EDIT: I'm on PC now, I took the chance to register and try playing in the site. On the registration, I encountered a problem. Most of site have repeat password textbox, so I thought that it was the referral code box (I didn't read it honestly and realized after reading the error). So, I deleted the data in the referral box and still encountered an unknown error (see pic below):
After waiting for a few minutes, the captcha noted "Verification expired. Check the checkbox again.". After trying again, the registration went through already. Is there any way to fix that?
Also, after the successful registration, I think it would be better if you
clear the boxes again and just put there a notification about email verification. (like this, but definitely better than this, just an example)
Another thing, could you put a
bet history below the gameplay? Just like other sites.
This is comparatively very low, you should either increase your bankroll or open investment opportunity for users so that you can increase this limit.
This sound quite huge. 
