My asylum has finished and I am using duldung but authority always tell me to bring my Nigeria passport or birth certificate to prove I am from Nigeria,  now they ask me to sign one paper and in the paper , they wrote that if an asylum seekers didn't prove where he is from, he will pay a fine up to 3000 euro or he will go to jail for 3 years.  My questions 
1. Is it possible they will arrest me or I will pay fine if I do not give them any identity of my country?  
2. Can they deport me without identity of my country ? 
Thanks