I'm not sure about the Server Xfer, Fac change, but rocket mount is possible.

Just pray you din get conned. Don't give the full amount before whole transaction is complete and verified by yourself.

Just a note that ppl offering these services are actually gold sellers (the one I spoke to is from China).

If your gold transaction isn't too big, its likely it won't trip blizz's alarm, but there will still be risks. One of them is the gold seller will know your blizz email login id (for transactions like the rocket mount). So be careful about account security.

Not encouraging the use of these services though.