Coins not available

Today I had a request for a swap for 11 coins. When checking the availability of the coins I had none in my swap list or in my collection. How was it possible to request these coins when I did not have in either list?

Is this a bug?

Hello,
Could you please let me know which swap and which coins you are talking, so that I can verify whether I see anything wrong?

August 26 swap 1 with wchansen. Non of the coins he chose were in my swap list. When I informed him he replied it had happened to him before. This is the only time I have seen this problem.

Looking at your swap list data, I can actually see that you actually registered all the coins he selected as available for swap, except the 20 cents from Australia (which was removed from your swap list yesterday).
I guess you added these coins in your swap list inadvertently, and as a consequence they appeared in your swap list.