I've got a problem/question about billing which I don't want to discuss in a forum - can I call somebody at hotmail (I'm in the UK)

Sometimes after I sent an email successfully,  and I got a reply for it.  but after a while, I found the content of my original email has been altered.  Could you explain how can this happen and how to protect the content of my emails?

Nancy

Can somebody help without posting a link to Windows live help please ?
i have the new msn and i cant see my contacts, will somebody pls tell me what to do? thanks
MSN PROBLEM: i don't see friendship requests i receive, and when i add somebody then i see that person offline all the time, although I KNOW he/she's online (told me that on fb etc.) and they also see me offline all the time...=we can't talk.. why? what's happening?
I'm tired to fix it, I'm not  an expert. please help me..tks.
This is the second time in couple month that I have the same problem..I can-t open my messenger, but I could open in another laptop..Is window live messenger.tks
Ramon.
Somebody is using my e-mail address. I want to change it. Please help me.
I cannot remove 20 messages from my inbox. Outlook refuses to delete all of them. can somebody help me?
They all are a CC sentmail from me