SSA 1099 not received, IRS said to file Form 4852

Go to this SSA website for how to get a copy of your SSA-1099 - https://faq.ssa.gov/en-us/Topic/article/KA-01723

Do you get Social Security benefits or SS Disability?  You don't get a SSA-1099 for ssi.  And ssi is not reported.   SSI stands for Supplemental Security Income