A similar thing actually happened to me. I was receiving a small package (probably a phone case) about once every few weeks while living in a rental house.
The seller had put my address as their address, so all undeliverable mail came to my house.
I brought a bag full of these packages to the post office, explained the situation and gave them the packages. The entire pile of packages ended up back at my house a few days later.
I found the seller on Amazon and messaged them:
———
Me: I haven't ordered anything from you. I have received 6 packages that you sent but ended up at my house because the return address that you used is my address, not your address. Could you use a different return address?
Seller: Dear nulltype, We're sorry about this, we can't change the address at the moment because of the cumbersome policies on Amazon, but we'll change it when we have a new production facility. Please forgive us. You are free to use the packages. Sincerely,
The seller had put my address as their address, so all undeliverable mail came to my house.
I brought a bag full of these packages to the post office, explained the situation and gave them the packages. The entire pile of packages ended up back at my house a few days later.
I found the seller on Amazon and messaged them:
———
Me: I haven't ordered anything from you. I have received 6 packages that you sent but ended up at my house because the return address that you used is my address, not your address. Could you use a different return address?
Seller: Dear nulltype, We're sorry about this, we can't change the address at the moment because of the cumbersome policies on Amazon, but we'll change it when we have a new production facility. Please forgive us. You are free to use the packages. Sincerely,
———-
The packages continued to arrive after this.