If you are directed to upload a document using the app but don't have a suitable device, perhaps a friend, family member or work colleague could download the app for you. No information is stored on the app so you don't need to worry about what happens with your personal information. The app is just used for the purpose of taking and uploading the photos. After that, you can return to your registration and continue with the process. The app can be uninstalled after that if desired.
Should you be unable to use our app at all, please do not hesitate to contact our service desk and we can look into any possibilities of completing your verification without it.