I have a friend in China who wants to send me some mooncake (it's a traditional cake they serve around harvest festival time) but she was told that she needs a "certificate for export" in order to send it. Apparently I have to provide it and give her a number to quote on the packaging. Where do I get it? What does it cost? Is there a way around it? Sounds like she's got it wrong to me, but I'd appreciate some knowledgeable input.