FAQ: After-sales serviceSummaryPurchase and top-up Go to Purchase and top-upValidation and use Go to Validation and useManagement and Support Go to Management and SupportPurchase and top-upI topped up my Navigo pass with my phoneI can't install the service for buying and loading tickets in an Android phoneHow do I contact the after-sales service related to the purchase of transport tickets from the application?I uninstalled my Android app. Do I lose my tickets that have already been purchased?I uninstalled my Android app. Do I lose my tickets that have already been purchased?I can't buy my ticket / An error occurred during the purchase. How to travel?I bought and paid for a ticket but it doesn't appear on my phone/smartwatchValidation and useI can no longer validate with my Android phone or smartwatchI made a mistake when buying a ticket / I won't use the plan loaded in my phone or smartwatch. Can I exchange my ticket or get a refund?What should I do if my iPhone or Apple Watch is lost or stolen?Can I travel if my Android phone runs out of battery?Following the switch to Android 11 on my Pixel, I can no longer validateManagement and SupportI changed my Android phone with tickets in it. How do I keep my tickets?I would like to change the areas of the pass loaded on my Navigo passIt is not possible to transfer the tickets from my Navigo pass to my phone or to my connected watch and vice versa.Can I benefit from the employer reimbursement?I have been charged several t+ tickets on a journeyWhat if the service is installed in the SIM card AND in the Android phone?Where can I find my support number?I have opened an after-sales service request and want to complete my file, what should I do?The Orlybus line stops, what should I do with my Orlybus tickets?