how do i do this on facebook?

[Damo]

Can anyone tell me how I can block private messages to my profile from people who aren't my friends?
I have been receiving messages in my facebook profile inbox from people who I don’t know. How can I stop people from inboxing me if they are not my friend?

My profile is already very secure and I even got a friend to ‘de-friend’ me on facebook and check out profile. He said he could only see my display pic, my sex and ‘send a message’.

It’s the ‘send a message’ section I want to remove. I know it CAN be done as I have seen other people’s profile which is isn’t there – it only contains their name and photo. Can anyone please guide me through the process to be able to do this.

It will be much appreciated. Thank you