Is this possible?

If I include just refId, I get E00003, (in short) complaining that's there no transId.

But if I include transId, what do I set it to? I have no transaction ID as the transaction was canceled.

Tried setting it to 0, but then it says the transaction is not found.

By the way, the API documentation does not say that transId is required. And the wording would certainly lead one to believe that you could include either refId or transId.

Anyone have more details on this? I've spent the best part of a day on it now. Searched the discussion boards, stackoverflow.com, google, etc.