Stalling payments for over 4 months now

I won in april money from mycasinobest. They told me I had duplicated account and took my winnings away. After I sended provements from my IP address etc and they agreed to pay me my winnings back and understood that I had only one account there. They promised to pay me (5000euros) 500/every monday until my winnings are paid. I dont know why, but they told me because of the securtity team told that. On 20th the casino closed down without any warning for one week. I have 2029euros left to pay from my winnings in April. 22.7 29.7 on monday they were supposed to pay me but they didnt. And tomorrow on 5th too. They have been telling me now for 10 working days that there is nothing they can do to speed up the payment process and that the security team wont answer to them and they dont know when they are working. (Even they already paid me 500/mondays for few mondays. ) after the casino closed down they havent paid me my winnings that I won in April. Plus I deposit some money and I have 2600euros on my account that I have been trying to cashout for 4 days now and nobody is taking any actions to withdrawl the money. Propably they will tell me some excuses why They can not withdrawl my money.
So I have there my manually winnings from April that they agreed to pay 500/week waiting, plus my winnings from my deposits while waiting my old winning.
The casino is nightmare, really rude manager, doesnt speak english, withdrawl process takes up to 8days, no answers, lies, no action or any help. The manager always answers I dont know.
This is unbeliavable. Please help me