You can call them scam sites once there are some valid proofs if they are scamming/stealing your money.
AFAIK regarding Betcoin.AG recent issue, they are still waiting for their mediator's response after they submitted all proofs they have.
We have just submitted our 6 page, 2100 word report with 27 screenshots to the mediator. They have many cases to rule on and this one has an enormous amount of information, so we ask for your patience while this is resolved. It is also possible they will need some additional information from either us or the OP prior to making a ruling. We will update the community with the results. Thank you.
Regarding bitcasino.io recent issue, as you can read they are trying to reach OP
Hello incoming2,
I am sorry to read you've had an unpleasant experience with us.
Could you please send me a PM and let me know your Bitcasino username so I could take a look?
Regards,
Karl
Bitcasino.io
Would you think a casino will scam you only for $1000?