If your passport is with the embassy when you need to upload it, there is an alternative for you. In this case, you can upload a selfie of you with your ID-Card and the receipt of the embassy in your hands instead of the selfie with the passport.
☝ It is important that everything on the documents is well readable so that the verification can be processed without any issues. Documents that are not readable cannot be verified. This will delay your account opening process a lot and we want to prevent that from happening.