What is blocking incoming international calls and SMS? Blocking of incoming international calls and SMS allows you to prevent any calls or messages from being received from foreign numbers. Why would I want to block incoming international calls and SMS? Blocking international calls and SMS can help prevent unwanted charges, scams, or spam messages from foreign numbers. This feature is particularly useful for those who do not want to receive communications from international sources. How can I block incoming international calls and SMS? Simply activate the service via the Changi Go mobile app. Will blocking international calls affect my ability to make international calls? No, blocking incoming international calls does not affect your ability to make international calls. You will still be able to dial out to foreign numbers, but incoming international calls and SMS will be blocked. Can I unblock international calls or SMS later? Yes, you can unblock international calls and SMS at any time by deactivating the service via the Changi Go mobile app. Are there any charges for blocking international calls and SMS? This service is available at no cost until further notice. Can I block only specific countries or regions? Unfortunately, this service does not allow you to block specific countries. The blocking of incoming international calls and SMS service will block all incoming calls and SMS from countries around the world, apart from Singapore. What should I do if I’m still receiving international calls or messages after blocking them? If you continue to receive international calls or SMS after blocking them, please kindly contact our Changi Mobile Hotline at +65 6701 1185 for assistance. How long would it take for the service to activate or deactivate? Service will be activated or deactivated within 2 working business days upon submitting your request.