Charles,
I'm new to this forum but not new to growing orchids,
Over 45 yrs orchids and 40 yrs neos.
If your plant is still alive, you are lucky. I recently purchased a small single growth Neofinetia Fukiden from SE and similar symptoms developed within days. It got worse and worse spreading to leaf after leaf and died within about a month.
I believe the problem was freezing during transport in the plane's cargo hold or possibly on the tarmac. This never happened to me in over 10 years ordering through the mail. Even in the summer cargo holds not temperature controlled can kill plants.
Don't feel guilty. The problem might not be you.
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