What's the going rate for freelance admin work in the UK?

Hi all

I've just been offered a freelance position doing admin work for a local company. It's not anything overly complex, basically it's checking clients accounts and making sure they're complying with the rules.

The company has asked me what I'd like as my hourly rate... please can someone give me a clue as to what is 'normal' for this kind of freelancing work in the UK? I'm not sure what to say!

Thanks!