I recently bought something off of eBay and paid through Paypal. The seller is in Thailand and shipped the item using EMS. He gave me a tracking number last night that started with "RD" and ended with "TH". When I entered the tracking number this morning, it kept saying enter a valid number. I tried it on the EMS Thailand Post website and the EMS China website but I noticed the tracking numbers on EMS website either begin with an "RA, EA, or LA" and end with "TH" could this be a scam or maybe the wrong information? Has anyone ever gotten a tracking number from EMS with other letters before?