Withdrawal of £1,000 Delayed For Weeks

I have tried half a dozen times to get a withdrawl from this site and sent 10 emails in the process. My account and documents have all been verified and approved and I have accepted NO bonuses yet each time I try withdraw it gets automatically cancelled by the site and I get told it’s due to a “technical issue” and that if I try again it will go through. This has been ongoing for nearly 2 weeks and they have done nothing, not even offered me and alternative method and as it stands they are withholding £1000 of my money and have to grounds to do so as per their own terms & Conditions. I have several screen shots to prove all of this as well as the email thread. I feel they are purposely cancelling my withdrawal in the hope that I gamble all my winnings away. I have tried and tried to get this fixed, asked them to escalate as a matter of urgency but got absolutely nowhere, they are still sitting with £1000 of my money.