I recently moved from an apartment complex in Florida. When I order * items off of eBay...

I recently moved from an apartment complex in Florida. When I order * items off of eBay about a month ago and didn't receive them I checked the orders and realized that it had shipped to that address. I'm positive I chose my new address when ordering them, but it changed to the original without my consent and without me noticing. I reached out to the sellers who said they had been "signed for". I called the complex who said if they had received any misdirected packages they would have returned them to seller, but they didn't receive any, which means the people who live in my apartment signed and took them. I really need my orders, but really don't want all that money to go down the drain. I need to know if there's anyway I can get a refund or have the packages resent? I don't want it to fall on the sellers as it's not their fault, but I really need help. Thank you