Filing 2023 taxes with TurboTax/Form 843

Hello! When I filed my taxes with you for the year 2023, I had worked for Tuesday Morning, which had filed for bankruptcy and closed. I immediately found a job with Walgreens and filed taxes for that year including both employers. My question is this: While I was filing, a notice came up on my page suggesting that Tuesday Morning overtaxed me on my FICA/Social Security and that I could file a Form 843. I have had this form for months! Tuesday Morning is now an online store. How should I approach this? I haven't forgotten about the advice, but I'm not sure the company is in the same hands. Would I gather the info of my FICA/ SS taxes that were taken out and report an explanation on a separate sheet along with my W2 for 2023 for line 7 on Form 843? Will the IRS be responsible for the inquiry or would Turbo Tax step in, as well? I did get the heads up while filing with you! Also, is there a deadline for a 2023 tax year amendment?

Thank you for your time!

Sincerely,  Jamie Sowards