If you're looking to own the most expensive AMEX card, it can be achieved by satisfying some additional requirements. To qualify, you'll have an annual cost of approximately $780/- without tax. The requirements for obtaining a premium AMEX card include the following: Candidates must be at least 18 years old at the time of applying. The applicant should be able to establish a high credit score, and their credit history should not show any errors in payments. The applicant must possess an average of 12 months of work experience in the industry. If you tick all the boxes in this list, you can acquire an AMEX credit card. You can reach American Express customer service by dialing the following phone number for more details.