I can beat that!
Someone from a large community hall emailed us asking for a quote to clean their windows quarterly. The property was set up with about 12 Windows along the front, and then a large wall of glass at the back that backed directly onto a river, which meant we had to lean over the river at an awkward angle to get it all cleaned, and a few veluxs, impossible to clean properly unless you had wfp equipment.
We emailed the quote back of £60 for a quarterly clean.
I gets an email back, copy and pasted below ;
Good morning,
Thanks again for the Quote
Just to confirm that it is 4 x per year Cleaning of all windows,
including the section above the river, and the two velux, including
all frames and doors
Total price for year £60
Please proceed with the cleaning of the windows for village
hall..
Please contact myself with the invoice
Kind regards
You can guess what my reply was.