First of all, thank you on behalf of all ebay sellers for being honest about the tardy arrival of your presumably untraced order(s). Thank you very much.
Second, contact the seller(s) to let them know your items have arrived safely. Tell them you would now like to pay them back. It is easily done, via paypal but your seller will probably want to know ahead of time what the money is for and from whom. Plus, they might have gotten into hot water with ebay for Item(s) Not Received and they can now attempt to have those incidents struck from their account.