My pack results delivered successfully in Italy the 17th November but I never received it and I don't know which courier was used in italy to contact for have info,could you please tell me so I can contact? furthermore I have 2 tracking number AS737749374CN and AS851863537CN, the 2nd not working why?

Hi, already almost 90 days I waiting my pack . For start I has send pack from Russia to China, but later China post told this pack has back to Russia, but where my pack now??? CL036171205RU When I can meet pack in Russia, how long time need wait.

I ordered and paid two items from a Chinese seller but the pack is not arrived from 24 Aug 2020. Tracking number is UW630785462CN Cainiao shows the pack returns to Huizou, Guangdond [惠州市]退回妥投 at 29 Oct 2020. If I know the truth. I opened a dispute about this case, but the seller said the pack delvered to my address. How can I prove the return?