If you are trying to activate a pay as you go sim, you need to top it up @Thanapob
Guide How to Top Up (PAYG)
If you are trying to activate a pay monthly sim, you need to contact customer services.
Either call them on 202, or message using social media:
Twitter
Instagram
Facebook
Please note, this is not customer services and we cannot access your account. Do not publish personal details (email, phone number, bank account).
Link to our guide on how to contact them can be found here
