Had an email from a mate today telling me about this site.
It's handy if you dont want to give out your real mobile number

Calls charged at 50p per min but that does not really matter because you probably do not like the caller anyway

http://www.privacynumbers.com/
Quotes from site
What are Privacy Numbers?
Think of a Privacy Number as a throw away telephone number. We simply divert your chosen Privacy Number to your mobile or landline number - that way nobody knows your real number but you still receive the call.

Why should I use a Privacy Number?
Why give your real mobile number to people you don't really know when you can give them your Privacy Number instead? If you decide you no longer want them to contact you, simply disconnect your Privacy Number and connect a new one while still keeping your mobile number. Also, should you lose you mobile phone you can simply ask us to divert your Privacy Number to a different number - nobody will ever know the difference!

Can I divert a Privacy Number to my mobile?
Yes you can divert to your mobile. You can also divert to any UK landline number starting 01 or 02.

Will people know my mobile number?
Your privacy number can only be used for calling not dialling. However we do offer a similar product called privacy exchange where you can make and recive calls using the privacy exchange. Please note anonymouse or witheld calls cannot be made using privacy exchange to protect the miss use of the service your unique privacy exchange number shall always be delivered.

Will you tell anybody my real mobile number?
Absolutely not. We will never reveal your mobile number to anybody - we hold your privacy and trust above all else.

A FEW PEOPLE DO NOT UNDERSTAND THIS AND THE OTHER POSTS I HAVE MADE IN THIS SECTION.
USE THE ABOVE LINK WHEN YOU WANT TO ORDER A FREEBIE OFF THE WEB OR ANYWHERE YOU THINK YOUR DETAILS WILL BE SOLD ON TO COMPANIES THEY MAY COLD CALL YOU

DO NOT GIVE NUMBER TO FRIENDS OR FAMILY(I THOUGHT THAT WOULD HAVE GONE WITHOUT SAYING, I WAS WRONG)

Check for discount codes to use at www.privacynumbers.com