Poor service

At the end of May 2022 I retired after 37 years service from correctional services.I received my money from gepf.In June I received a letter that an amount of R22 361.42 was paid to much for tax .On the 19 th of July 2022 I informed Sars and attached the document.The reply from Sars was that correspondence will be send in due course.I is now 10 February 2023 and I am still waiting.I lodged a complaint but reply was in service.