If I received a lump sum Social Security Disability payment in 2022 for the 1.5 yrs I was in approval process but did not receive money nor SSA-1099s how do I enter that?

The lump sum covered 18 months of benefits, so I did not receive a SSA-1099 in 2020 or 2021 since the money wasn't paid until 2022. TT wants info from these forms I didn't get for money that I didn't receive in those 2 tax years.