SSA repayment in same year collected

In 2021, I started to collect SSA retirement income. After several payments to me, I changed my mind, obtained and filled the rescind/repayment form, included a check for the full amount of money received and dropped it at a SSA office in 11/21. They still have not cashed my check but sent me an SSA-1099 form.  As I paid the money back in the same year I received it, do I have to still claim it as income? If so, how do then state that I already repaid the money, so I am not taxed on it?