What are the benefits of having an Alliant credit card? Last Modified Thursday July 23, 2015 As an Alliant member, having a Platinum or Platinum Rewards Visa® from Alliant makes smart financial sense. Our Visa credit card options give you the purchasing power you deserve, while saving you money over higher interest rate cards with every statement. We offer a great interest rate, too. Plus, it’s not a promotion or introductory rate that will eventually go away. Find out more here.