exactly what number do I call from USA to speak with China Post to find out where my package is? UH014819118US

RN652686890GB
RN652686909GB

Please check for me - what does 送交承运商 mean, exactly? Does it mean that the package was given to Koreapost? Is the package still in China? Or has it left China? Please help me. I was given previous advice to call China post. I did call them, but I was told that I had to call a different number. That number didn't work.

I don't whether to file a claim with the Royal Mail for a missing package or to wait.

My parcel from Australia to HK (LK143287754AU) is cleared and awaiting international departure in Guangzhou since 10 March. I contacted Australia post and they said to call China customs. Will this help speed the process up of getting my parcel delivered to HK? It’s a neighbouring city. This is a big concern.