I want to buy some of these racquets, but they are only available from Europe. The issue I have is with payment. I am dealing with the website www.estusa.com and they say they only accept payment in advance and won't take credit card. They basically told me I can either wire them the money or send them a cashier's check. I am unfamilar with both of these types of payment and a little uneasy. Does this sound like a situation where they could easily take my money and I would never get the racquets or hear from them again? I would probably be buying 4 racquets to make it worthwhile with shipping costs, so this would be running me close to $800 and that is obviously a lot of money for me as I am only a college student.