code: function (card, cb) {
  
  		Card.destroy(card.id)
  	    .exec(function (err, destroyedCards){
  	      if (err) return cb(err);
  	      if (!destroyedCards) return cb(null, null);
  	      Card.afterStripeCustomerCardDeleted(destroyedCards[0], function(err, card){
  	      	cb(null, card);
  	      });
  	    });
  	}
docs: Stripe Webhook customer.card.deleted