Who can I contact if I have issues redeeming my Flash WOWcher(s)? Yoodo Care March 22, 2021 01:40 Updated Please contact the partner brand’s customer support line. More information can be found in our Flash WOWchers Quick Guide. Related articles Who do I contact if something didn’t work? How do I use my Flash WOWcher(s)? Why have I been given a Flash WOWcher from a different brand than what I claimed? Can I ask for a change? Comments 0 comments Please sign in to leave a comment.