Let me clarify the responses over where the seller must ship. Although the intent of the posts is correct, clear language would be to state. The seller must ship to the address on the order. Ebay provides that to the seller, It might not be the same as the billing address for the credit card or the address associated with the Ebay account.
The seller has no control of the shipping address.
If you are subject to porch piracy, you should provide a more secure address when you order, not after the order has been placed and paid for. You contribute to any loss to porch pirates if you specify your home on the order.
