I think his worries are valid. It is already later than 28th and he hasn't received his items. Suggested can go directly to ask XiaoMi for assistance as this is priority clear, it doesn't really have regular custom process. So customer see this kind of items will do on the air clearance. Once the ULD arrived in Sepang it will clear it out. It is high possibility left over in the warehouse or miss tracking.

I might used some very technical terms but summary to say you should look for your item with XiaoMi now.

Ok, my bad, I din see his is the first batch.  But we can't help much here.  The best way is to call up Fedex and contact xiao mi Customer Service.