Haha, I know this because I have participated! Great~~~Cashback for overseas consumption, the cashback rate in Thailand is 7%. I have screenshots of the specific event details for your reference~
The SMS registration method is: use the mobile phone number registered in the CCB credit card system to edit the SMS CCHD#last four digits of the card number#010 and send it to 95533. To register, you must use your primary card number to register.