If the link provided by @Nwada001 is the correct one then you should consider reaching out to them through PM, although the account seems to be inactive but yet I'm sure the PM will trigger some sort of an email at their end of that is if their email is still working though.
You should also consider adding more proofs, because in a situation like this solid proofs are needed in other to know if truly what you claim really happened to you or not. Edit your post add more proofs if you have images you can add them.
they take our coins for few hours and gambling with it till they make profit and if they win they will refund users if they lose they wil find reason if u lucky they answear u
Btw, is this an assumption or do you have proof of it? If you do you could also include it in your post.