I need advice on how to obtain a mailing address in the UK?

I don't live in the UK and some online services do not accept addresses in the country I live in. It is very important that I have a mailing address so I can receive my checks. Do u know a way out?I need advice on how to obtain a mailing address in the UK?
Several agencies offer this service. Here are one or two links as examples. I've never used one, so can't say which would be best for you.


http://www.w1office.com/?gclid=CKWq4fqg1鈥?/a>


http://www.cordonbellmailservices.co.uk/


http://secondaddress.com/


http://www.londonoffice.co.uk/mailing.ph鈥?/a>