BT Business Routing Issues and a TERRIBLE support experience

This is a bit of a rant post, but I had to rant somewhere, and since the BT Community Forums are so heavily moderated against anybody posting actual accounts of their support experience if they are in any way negative, I thought I’d post it here.

Today I discovered that I couldn’t update Homebrew on my Mac. Digging in, it seems that I can’t resolve brew.sh at all, or indeed anything hosted by github.io.