This function or event no longer exists in version 6.0.2 (19034) of World of Warcraft. Please check the main API page for an up-to-date listing of the valid API functions
Fires when the player attempts an action which will make an item purchased with alternate currency no longer refundable. Certain items purchased with alternate currencies can be resold to the vendor for a full refund within a brief time after purchase, but performing certain actions may cancel this period early.
Signature:
()