Short answer
Update your card yourself under My Profile, in the Billing section, and set it as your primary payment method.
You update your payment method yourself, in your account. For your security, support can't add or change a card for you, and we never take card details by email or portal message.
- Log in to your AlphaMD account.
- Go to My Profile.
- Open the Billing section.
- Add your new card.
- Set it as your primary form of payment.
Future charges will use your new primary card automatically.
If a payment already failed, see What happens if my payment fails?