With well over 100 transactions completed with sellers in China, Singapore, Japan and others, including many items that were exceptionally good prices, I think we need more details on the nature of what the supposed scam was.
A very important question, if you are claiming an item purchased was not ever shipped - you are aware that postal shipping time can exceed a full month, right? I've had items arrive (postmarked confirming they were shipped on time) well past that as well. In some of the earlier cases I demanded a refund, then realized my mistake when an item took 6 weeks to arrive, and paid it back to the seller again.
Not saying you don't have a legitimate issue here, and yes, 97% is rather low because of the volumes they deal in, but more details are needed here.