Which variant is requested differs from case to case and is specified by ySense.
Phone verification works very simply by sending you a code on your mobile phone, which must be entered in a verification form in the ySense portal. After successful entry, your account will be marked as 'confirmed'. Important note: Phone verification does not work with prepaid phone numbers in most countries. Some national providers are not supported.
ID Verification with Provider Persona
ySense use Provider Persona for ID verification.
A link will be sent to the registered email address, which is valid for 24 hours. It leads you to Persona. Here an official ID document needs to be uploaded and a few more steps are required. After successful verification, your account will be marked as "confirmed".
What can I do if there are problems with verification?
In this case you can only contact Customer Service.