How can I fix this Ebay error through shipping?

Question

I made a big mistake shipping the wrong items to two of my buyers. Now how can I send them a postage for them to return the items back to me and for me to send them their correct items?

Answer 1

Go to the Post Office and have  a prepaid label made with your name and address as the receiver, and when they ship the items back to you, have another label made up with you as the sender and  they the receiver.  

Answer 2

Just send them the amount of money they need for postage via Paypal.

(If you think you can trust both of them, maybe it would be easier just to have each of them mail their wrong package to each other?)

Answer 3

See if you can bring up your checkout for each buyer and that should have the postage amounts on them.  Then send them the postage via Pay Pal as suggested below.  Also definately contact them and tell them of your mistake and apologise, this way you may save your feedback and honesty is the best policy.