Repayment issued as cheque repayment?

Hi- I have been waiting 13 months for self assessment overpayment refund 2022/2023 - I have looked at my account via app today - like I do every day for status- it’s now showing that my repayment is a cheque repayment 19th May - stating the obvious will a cheque of been sent out but on the 19th ? - it is 21/05/2024 today when app showed cheque repayment- how long will it take or be processed before I should worry- don’t understand this cheque issue as my 2023/2024 self assessment was paid into bank and they have same bank details for 2022/2023 self assessment ? - any information most grateful thank you

Hi jackjosh9 Mcgowan,
If showing as issued as a cheque on 19 May 2024 then you should allow up to 3 weeks for the cheque to arrive. 
Thank you.