Every bank will recommend gold cards to VIP customers in order to provide better services to these relatively large customers. The conditions for applying for a gold card vary slightly from person to person, but generally speaking, it must be the amount of deposit balance in the bank that you can apply for. Cross-bank transfers are free of charge across the country without queuing, and provide airport VIP and expert health and medical examination service clinics. What free golf services and so on. Some banks' silver cards have a higher level than their gold cards. Of course, the discount is on top of the gold card. The offer is extended to the whole world. As for the green card, it depends on which bank you are talking about.