Articles in this section How to Find the Email You Used with Apple Pay (iPhone) Apple Pay: Finding the Correct Last 4 Digits for Your Purchase What’s the pricing for IQ Institute subscriptions? Are there any additional features available with my subscription? Is my plan subscription-based? What happens at the end of my billing cycle? How can I update my payment method? I didn't authorize a subscription or recurring charge. How can I update my payment method? To update your Payment Details: Log in to your IQ Institute account. From your profile avatar, go to Payment Details from the left menu. Select Update to change your payment details.