I received an email from Jetstar saying business upgrade was available for our flight attempted to take advantage of upgrade but going onto link provided was unable to change to business class. still receiving emails saying the flight was eligible for upgrade still unable to get the upgrade, twice contacted live chat and "Jess" no one able to give me any help to take advantage of offer, contacted by phone and told they were unable to help This is just a con and false advertising The booking is WYCW3B