Transaction and activity verification

Why do I see "Unlock your transaction" in my ZEN.COM app? My transaction seems to be stopped Which documents can I use for source of income verification? Why do I need to verify my identity again during login? What are the legal grounds for conducting the verifications? Why was my transfer declined after the review? What is the purpose of verifying the source of income? My identity verification failed when logging in to a ZEN account Why does ZEN.COM ask if I’m affiliated with a politically exposed person (PEP)? Why does ZEN.COM ask for information about the sender or recipient of a transfer? Why do I need to follow the ZEN.COM Terms and Conditions?