Payment system have become the most often used by many people in the world. Technology advances has encouraged people in using cashless term through credit card, debit card, and e-money. Meanwhile, the subject of this research is Jenius. Jenius is a revolutionary banking application that is equipped with a visa debit card to help people conduct their financial activities such as saving, transacting, or managing people’s finances to be more safely, smartly and simply. Everything is done from one place including all on a smartphone by using the Jenius mobile application. This research has a focus in the perception of millennials’ towards the persuasive message of Jenius Connect advertising in Instagram as a payment system. The theory that is used are Elaboration Likelihood Model(ELM), Computer Mediated Communication (CMC), and Integrated Marketing Communication (IMC). There are several concepts which are Instagram, Instagram Advertising, and Digital Marketing. The research methodology is using qualitative with the data collection through observation and interview. The finding of the research has stated that most of Millennials’ tend to like the promos that are offered in the Instagram account of Jenius

Keywords: Public Relations, Payment System, Visa Debit, Persuasive Message, Perceptions, ELM,CMC,IMC, Social Media, Instagram, Advertising, Instagram Advertising, Digital Marketing, Marketing and Millennials