How to replace Capital Gain Computation Worksheet file uploaded and submitted previously?

I submitted the 2022-2023 tax return using online Self Assessment early this year, but now I need to update the Capital Gain Figures AND to replace the attachment file of computation worksheet. I can successfully modify the figures of Capital Gain , but when I tried to replace the attachment file of computation worksheet, the system do not allow me to delete the original file which I uploaded in my previously submitted tax return, (it only allow me to add an attachment file). Please help to advise how I can REPLACE the previously uploaded file by another file which is of corrected content for Capital Gain computation worksheet. Thanks.

Cookies on Community Forums