S D

I completed my 23-24 self-assessment at the end of May. I was pleased to see that I was due a refund of overpaid tax. Having selected the option to get a refund and filled in my bank account details while completing the self-assessment, I expected to get it back. By September nothing had happened so I Googled and found that there is a form you need to fill in to get a refund. I filled in the form. No response or acknowledgment. I installed the HMRC app which gave me the option to fill in the refund request form again so I did and kept a note of the date. The app still gives me the option of filling in the form to get a refund. There is no record or acknowledgement of the fact that I have already claimed the refund (twice). Do I need to do something else to get my money or are you just behind with refunds?