Account Closed After £7000 Win

[hazc770]

I recently had a couple of big wins on the slots at 21.co.uk in quick succession. I initially won around £2600 and then I made a withdrawal request for £2200 and continued playing with some money I left on the balance (around £400). Quite amazingly I won £7,000 with that remaining money.
I decided that was more than enough and my luck wouldn't go on any further, so I went to withdraw that £7000. On doing so, I was rerouted to the 21.co.uk login page. I had been logged out.
On trying to log back in I was immediately kicked back out again. It's as though my account no longer exists.
I contacted their Live chat and they said "the reason you can't access your account is because your account is under review and I have nothing else I can tell you".
And that was it.
Should I be worried? Is something shady going on?
It's all been happening over the Easter Weekend, so perhaps they don't have many staff in. But my account, with a £7000 balance and a separate pendinf withdrawal of £2200 is no longer available. It's extremely worrying. 
I screenshotted my banking page before my account was locked out. The screenshot shows the £7000 balance and the pending withdrawal of £2200. If this is indeed shady, would this be useful evidence if I wanted to pursue them?
It may be all above board, but if it is, the communication is shocking as they just kicked me out of my account without a warning.
I'm worrying however that my legitimate winnings will be lost to a scam casino.

Any advice on where to go from here?

[cocopop3011]

57 minutes ago, hazc770 said:

I recently had a couple of big wins on the slots at 21.co.uk Casino in quick succession. I initially won around £2600 and then I made a withdrawal request for £2200 and continued playing with some money I left on the balance (around £400). Quite amazingly I won £7,000 with that remaining money.
I decided that was more than enough and my luck wouldn't go on any further, so I went to withdraw that £7000. On doing so, I was rerouted to the 21.co.uk login page. I had been logged out.
On trying to log back in I was immediately kicked back out again. It's as though my account no longer exists.
I contacted their Live chat and they said "the reason you can't access your account is because your account is under review and I have nothing else I can tell you".
And that was it.
Should I be worried? Is something shady going on?
It's all been happening over the Easter Weekend, so perhaps they don't have many staff in. But my account, with a £7000 balance and a separate pendinf withdrawal of £2200 is no longer available. It's extremely worrying. 
I screenshotted my banking page before my account was locked out. The screenshot shows the £7000 balance and the pending withdrawal of £2200. If this is indeed shady, would this be useful evidence if I wanted to pursue them?
It may be all above board, but if it is, the communication is shocking as they just kicked me out of my account without a warning.
I'm worrying however that my legitimate winnings will be Lost to a scam casino.

Any advice on where to go from here?

Hi and welcome to the forum. 

Were you playing with bonus funds, and were you playing slots?

It's hard to predict what is going on at this early stage, if you have stuck within the terms and conditions you should be fine. I imagine because it is a large amount they are reviewing your account. How are you currently communicating with them?