2 smiliar items, both sold, sent wrong one

Hello


 


I had 2 similiar items sell, both by 2 different buyers, both paid............but i realised tonight I sent one the wrong item today.


 


What i have done is contacted both of them and are waiting for replies. One I said i sent their item to someone else by mistake and apologised. Told him i have contacted the other person and asked them to return it and I would pay them the return postage. Also told him I would refund the postage cost to him as well and would post it as soon i received it back


 


Then i alkso offered him a full refund as another option, i realised it could take 2 weeks in a round trip to get back to me and it may never arrive back which is why I also offered them a full refund as well


 


The other bidder who I did sent it to, I asked them to return it and I would cover registered postage ($40 item)


 


Have I done all I can for now or what else can I do? What do the experienced sellers do in a situation like this?