While I am still in the process of learning about it, I have not brought a bitcoin as such. My understanding is that Bitcoin is a currency like GBP and USD but a virtual one. There are plenty of organizations from where you can trade. But be sure about the rules and regulations in UK before trading. Am really looking forward to buy bitcoin when I am a little rich. Why I say this is that the value of bitcoin as of today is about $5000+. So, it requires a bit of investment to buy.