After playing for 3 weeks on the site https://rollercoin.com/, I applied to withdraw 1,000 DOGE, but each time my request was canceled. I sent them many emails, but received no response.
No admin on their Discord channel was able to answer me. Although some say they received from this site, from now on they will not have any payment.
Update : 19/10/2020
They answered and apologized to me for the problem and confirm my request.