[ramjam]

I have cashed out from there successfully in the past.

As previously stated, William Hill is a highly-respected and longstanding bookmaking organisation. However, the poker room is essentially a subcontracted offshoot - it's just a portal to a server that is run by Cryptologic, their casino software supplier.

If you search the forum archives back a couple of weeks you will find another complaint about poor administration - entitled something like "Letter to Chief Executive of William Hill". If you get no response from the poker/casino staff, try writing to him also - individual letters may get written off as cranky but when similar complaints come in from multiple sources they are much more likely to get followed up.