# Confirmation:
- You will receive a confirmation email and voucher instantly after booking
- In the event that you do not receive an email from us, please check your Spam folder or notify us via email
# Additional Information:
- 2G phones are not supported by this SIM card package
- The card can be topped up at any Viettel outlet
- To check your SIM card's remaining balance, please refer to the instruction guide
- The card will be activated for you upon pick up at the airport
- Kindly indicate your pick up time and passport number at the checkout page
- If your flight is delayed or canceled, please inform Klook customer service as soon as possible. The operator will reschedule your pick up time
- **Please check and be sure your SIM card has been activated before leaving the counter. The refund will not be issued in any case if you leave the counter without checking**