For a person without passport, just citizenship - none of that would prove anything. You need to prove continuous residence for 5 years, the only accepted form

For a person without passport, just citizenship - none of that would prove anything. You need to prove continuous residence for 5 years, the only accepted form of evidence in utility bills, bank statements and council tax. You need 1 document per 3 months of residence, so at the very least 15 documents, and they have to be from 3 different organisations, without gaps. Do you have that?