I think you bought something on eBay, right? The tracking number seems to be a ePacket number. It couldn't be tracked in China Post tracking system. It can be tracked in eBay background. If you don't know how to track its shipping status, you can contact the seller to help you check.

You'd better ask the seller if they use aPacket (EUB) to send your package. If so, it should be arrived in 7-10 working days. It couldn't be so long. Besides, if you package couldn't reach you in two months, you'd better open disputes to eBay as soon as possible.