Hi team, I have opted out and have stopped receiving child benefit on 10 October 2022, this is when my last payment was. 2022-2023, I have earned around £62k. In February 2023 I have become self employed and have my own limited company. I have submitted the self assessment form but I have received an email from HMRC to say the information I have provided is not sufficient. I am very confused as I didn’t realise I would have to do this as I’ve stopped receiving payments in October 2022.