Lots of issues with Transferwise. I got to the payment stage where I had the Bank Transfer and the Debit card options. However I could not complete either. My card is Visa but not verified so I was getting errors and it turns out in order to send money to a new payee I need a PINsentry device which is going to take 7 days to arrive lol.
Just get verified by visa, you can do it in your online banking. Having said this, if you still wanna buy Bitcoins in the UK, directly without intermediators on ebay or other middle men (with huge fees) is difficult, I made this guide with an easy process:
http://howtogetbitcoinsuk.blogspot.co.uk