By the way:
even in this post: Vat at 0% how to add on invoice?
Glenn placed a link to HMRC website https://www.gov.uk/government/publications/vat-notice-735-vat-reverse-charge-on-specified-goods-and-services
(VAT Notice 735: VAT domestic reverse charge on specified goods and services).
“Specified Goods” - this term is important as HMRC explains what they are:
"The specified goods to which the reverse charge applies are:
mobile phones
computer chips
wholesale gas, and
wholesale electricity
The specified services are:
emission allowances.
A reverse charge definition for each of these is set out in the following paragraphs."
So clearly it does not apply to my case and probably do not apply to the person that asked the question in that post I’m referring to.
He didn’t say what he was selling, Glenn didn’t ask.