A business failure resulted in high credit card debt and the loss of all property, savings, and assets except for a car. I then started driving for Uber, continuing for years in California. All non-survival driving income was applied to debt service. In 2019 I drove January-June but then stopped for medical reasons. Four months later, as a hopefully temporary measure, I applied for and was granted SSI at the maximum level of a little over $1000, based on finances and my age of 66, not disability. SS retirement benefits are not at issue here, having not yet paid in enough quarters. I am now told by the SSA that a mistake was made and benefits will be drastically reduced, because while four months passed with no Uber income before applying for SSI, and with no assets, as one self-employed, for SSI calculations, the earnings for the first half of 2019 (the only 2019 earnings) are calculated as being distributed over all of 2019, falsely appearing as continuing income for the second half of 2019, so now they claim major overpayment for 2019 SSI payments, now to be deducted from future payments. Have they made a mistake? If so, can you please cite a SSA rule I can cite to them? Is there an alternate approach here? Thanks for your help!