Hey I want to change my phone no. On my parcel I told my seller but he didn't reply my message and he shipped the parcel now I want to change my phone no. On my parcel UW438693466CN this is my parcel tracking number

My parcel EL020298376RU was sent 22/04/2021. As I understand the declaration was lost. But the receiver can't send it by wechat because his phone number was written incorrectly. How can sender (I am) or the receiver change the phone number attached to the parcel? Or is there some e-mail where I can send the declaration?
P.S.: The receiver can't come personally to the custom service because it is too far from him (about 150 km).

Hi, the parcel with tracking number RA756063703RU came to ZHENGZHOU and no longer moves to me. I've received a weird message from the postal service that says that I need to pay some weird customs fees. I want to tell you that the item that is consists in the parcel is the iPhone XR that originally was bought in China as a gift and came to Russia with factory defects, so the person who had this phone as a gift sent the phone back, I'm going to receive the parcel and come with that phone to apple store and proceed the warranty repair. I'm not a shop and if you open the parcel you will see the original box of iPhone XR with the Chinese hieroglyph on the back lit of the box and broken iPhone. To tax the item that already has been taxed is really interesting thing.