What should I do if the payment tab for my Thai visa application is greyed out?

John Downes With what system you paid ? some cards like Wise or Revolut can have problems, wait a few days and if it could come not clear phone the embassy Also American express card could get refused but than you do not get charged . Visa or Mastercard are working best What problems occurred : Payment Gateway Rejection / Glitches : but than the payment is directly refused 3D Secure / OTP Failures: Wise transactions require app-based verification or 3D Secure authentication, which can time out or fail to trigger properly when interfacing with the Thai e-Visa portal's payment processor. Confusion with Bank Transfers vs. Card Payments: Wise provides a digital/debit card as well as local/international bank transfer capabilities. If you attempt a direct bank transfer or wire instead of a standard card payment, the Thai e-Visa portal generally does not support manual wire transfers or Wise-to-bank account pushes for visa fee settlement (expecting a direct online card transaction instead).

Rob Davies you don't HAVE TO. You can apply up from 3 months before your planned flight to Thailand. You just can't apply when the system detects by your flight date that you are still more than three months away

Rob Davies That’s not what is written Rob.

He clearly says UNTIL 90 days.

Wayne Roberts no, you can't apply when the system detects by your flight date that you are still more than three months away