Dear
Pls
You should be very careful while buying through ebay. There has lot of scam. Payment only paypal and through ebay only. Otherwise you will be cheated. Ebay will not be responsible for any purchase outside ebay.
Many of them will request and will send you ebay invoice directly to you. But you shoudn't be paid for that. They will sent you the invoice, in ebay letter head.
So be careful.
Wish you all the best.