I am a Bangladeshi staying in Beijing. I want to send some documents to Bangladesh. What things I need to send via China post? Should I have a postal savings bank account to send this docs? or only passport and my student card are enough to send? Is china post open on sunday?

Dear sir,
I am Maynul from Bangladesh Bangladesh government has already launched Global e-commerce service. 80% of Bangladesh's e-commerce products are imported from China, so Bangladesh government wants to take china post office global e-commerce EMI service to improve the quality of global e-commerce services. I would like to know the details of how I can get service in e-commerce

I am Md Hiran Hossain. I am from Bangladesh. I got csc scholarship at Wuhan textile university. the university was sent to me admission documents by EMS. My EMS tracking number is EA571366238CN. Bangladesh airport stores authority they gave back my documents in china. I did contact with the Bangladesh airport authority. they told me, this documents don't have my house address there only have my city name that's why we return it. I told the airport stores authority There have my phone number why you didn't call me. If have any problem about my documents Definitely, you should call me but you didn't do that.and I asked them where is my parcel right now. they told me, your parcel has departed at the export office of Bangladesh and Right now your parcel has Shanghai in china. it's my humble request to you, please send my parcel at Wuhan textile university. The university will again send me the parcel. please help me The admission deadline is very short. so as soon as possible give it back to the sender. The sender will again send me.