Hi Kim,
I can't be sure, but you might have more luck with one of the Payment data tags, these may include all payment/refund transactions instead of just what the registrant ordered.
{[C-ORDERS PAYMENTS]}
{[C-PAYMENTS]}
Unfortunately, I checked the Data Tag cheat sheet in the support center and none of the descriptions address refunds, I hope you find something!
------------------------------
Angela Le
Cleveland, OH, USA
------------------------------