Delayed payment from Jackpot247 Casino

I Joined jackpot 247 in Aug 2014. Was asked to provide Identification (3 different documents) on 5th October 2014 as I had won a smaller amount and requested a standard withdrawal that had not been a problem for me at other casino's. This is where my problems began. I asked where my withdrawal was and received a reply on the 14th Oct indicating one of the documents had expired, that was obviously fine so sent the new driving licence and heard nothing at all about my win again despite numerous emails was met with a wall of silence. In June this year decided to give the site another go after still receiving all of the bonus offers through email, I was asked for further identification at this time which bizarrely included a picture of myself holding my ID. (I've since found out after reading this is becoming more common) Anyway I adhered to this and sent the request. After spending large sums of money (stupidly on my part) recently Sept '15 won a very nice amount for £5025. I completed the terms and conditions of the promotion and made a withdrawal for £2000 on 21st Sept and that was that or so I thought. I on the 26th Sept after hearing nothing sent a polite reminder asking for an update with my withdrawal and was met with a response indicating "kindly note your account is under review by management" on the 26th Sept this year and after a further follow up email again have been met with a wall of silence. I hope to have a resolution to my withdrawal as I'm not sure what steps i can take from here.

Thankyou