First time posted however long time user of this forum

I am due to apply for my naturalisation in October, as I'll have had ILR for one year at that stage.
During a move earlier this year, I lost my Life in UK test results, and now only have a photo copy.
I called the HO today on 03001 232 253 and they said to include a cover letter, with my photocopy of my pass result and my email confirmation from the test centre of when I took the test, and that should be fine, but in typical HO fashion wouldn't tell me that it would definitely be ok.
I don't want to risk the application fee if it's not going to go through, does anyone have any advice for me or what I can do to provide more info that I passed my LIUK test??
Thank you to everyone in advance!