This is just painful:
"who ever told u that (how to measure a stem) is a complete jack arse amd don’t no what there talking about I’ve been doing this for over 20 years please listen to me I’m not gunna lie to you why I’m earth would it be from the stem point when the stem length is determine how far your reach is gunna be with the frame
Amd your position. Of the bike it’s self worth what the person is comfortable with so u measure the entire stem to work out the difference between you the stem seat post amd your positioning on the bike so would never measure it from the stem because that’s not we’re it begins simple"
To think that this person is actually out there, alive and operating in society...I've often wondered, how do people like this actually operate? as in with responsibilities and day to day life? I have to assume their inability to write coherently is not an accurate representation of their general intelligence...fingers crossed anyway...
But yeah, probably best not to engage with them further! Just do whatever you need to get your money back.