I’m also in UK & It does not work like that at all.. you deposit btc, buy bcc & lend them bcc, you then get interest paid in usd which you need to transfer back to bcc/btc to cash out, i have videos on it on my blog, feel free to check it out - but always do bit more research then just listening to one person and make up your own mind... that’s why I did and now i’ve been with bitconnect for months and could not be happier.
PS. They are launching a debit card so soon you will be able to take out money from the platform anywhere