one of my FBA items is qualified to restock!! what does that mean? is there any charges if i can't restock??

Order number: 113-4884576-4836262, logistics single number: AM947385303CN. this piece is shipped out on time, can also be on time to the goods, but because of the logistics reasons lead to not on time delivery, at present, this order has been signed for the success of the delivery, but the platform authorised to refund to the customer. Attachment is the successful delivery of the logistics official website logistics track update delivery information, showing that it has been signed for. The customer has applied for a refund, this side of the station letter communication to let the customer refuse to accept the parcel, but the customer still signed for my goods. Now I can not get the goods back, the money is also returned to the customer, how to deal with this? Sometimes it is really speechless and helpless.

The parcel was shipped out on time, and the logistics department verified that it was returned to customs once because it was mixed up with sensitive goods, and then re-examined and reshipped again. Now I am owed two empty goods. I don't know what to do.

Hello, I am trying to make an LTL shipment, but it is sending me to RDU4. Is it possible that this destination can be redirected to RDU2 in some way? thank you