May have found a possible work around. As a PP noted, others had said they reported their card lost and received a new one.
You have to sign up for an account on the BK website and enter your card number and give it a name. Then click on "Report a Missing Crown Card". You can choose to add the funds to another registered card or transfer balance to a new card. Once you make your choice, you'll get the following message...
"Your card has been reported.
Your report has been successfully submitted. If you requested a balance transfer to one of your other existing BK® Crown Cards, this new balance will be immediately reflected on this card. If you requested a new card, it will arrive via mail in 7 to 10 business days."
I suppose that I could've stacked two "missing" Viggle cards onto the third Viggle card and then reported that one missing for a $15 card. When I get the physical card in the mail (and know that the process works), then I'll do that with the remaining cards I have.