Please please please..... DO NOT PUT Personal Info in a post to a seller. Use the PM's. Posts are visible by entire Internet. You're giving spammers and miscreants information that is useful to them.
Check out the sellers history of posts....are they well known? They must have a minimum of 50 posts to reply to a topic or post a topic in this forum. Look at their post history.
If paying a seller...Use PayPal. They have great buyer protections. Always select "paying for goods and services" If you dont get the goods or services...you have a good chance of getting your money back. Scammers usually insist you send it as "sending money for friends and family" because its less likely you can get your money back.
Personal information is things such as phone numbers, email addys, home addresses, etc.