You’re not gonna get it. A lot of people have attempted this, even offered to pay more to send the tablet with original packaging. Now that they have sent you the tablet, even if they make an exception for you, they won’t find the one matching with your tablet (serial numbers, etc.) within the seas of original boxes in their warehouse/trash/whoever they sell the boxes to.
You are lucky you received your tablet in good shape. At lest Banggood tries to protect the tablet in transit. I just received a Cube iWork8 from Everybuying and the screen came cracked and not working properly (lcd not the digitizer). Because I did not buy their insurance I either have to return it at my expense for an exchange or pay them $30 for a new one sent DHL (this was after much negotiation). I would gladly give up the original box for receiving a tablet without a broken screen.
If you’re looking to obtain the original tablet box from Banggood, there’s a chance you might be able to request it directly through their customer service. They may have options for sending replacement packaging or the original box if you explain your situation. Additionally, make sure to provide them with your shipping details, including your po box 1120 charlotte nc, to facilitate the process. While it’s not guaranteed, expressing your need clearly could lead to a positive outcome. It’s worth reaching out to see what they can do for you.