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Group 1 - The article promotes various credit card offerings with attractive benefits for new users, including fee waivers and rewards [4][21][12] - Specific cards mentioned include the Engineer Credit Card, American Express Centurion Card, and Starbucks Co-branded Card, each offering unique rewards for new applicants [7][8][16] - The article emphasizes limited-time offers for referrals, where both the referrer and the referred can receive rewards upon meeting certain criteria [21][25] Group 2 - New users can receive significant bonuses such as cash back, gift cards, or branded merchandise upon meeting spending requirements [4][19][20] - The promotional activities are designed to attract new customers and encourage existing cardholders to apply for additional cards [23][30] - The article highlights the convenience of managing payments, investments, and loans through a single app, enhancing user experience [27]