When you use the pocket WiFi rental service of Weefee, you are guaranteed to be able to use the services. In the unlikely scenario that you are having troubles while using the WiFi, connect with the public access WiFi such as in airport, hotel or restaurant and contact us via our hotline on Zalo, viber or whatsapp. Our technical support staff will help you troubleshoot the problem. Besides that, we have also attached a troubleshooting guide in the WiFi package, you can try to troubleshoot yourself first, if it fails, we will support you.