Question to ChessExpert — you say you ordered from that site, but have you received your order? That looks remarkably like the ‘happy family’ scam site eyeamok referenced.
You can obtain a legitimate scrip from a doctor on this list, linked by the FLCCC guys: https://www.exstnc.com/
I had the same question. I ordered from that site. I had to pay for rapid shipment. They shipped it rapidly, but US customs sat on it for at least a week.