I created a huge rant on code signing certificates here: https://www.youtube.com/watch?v=mwuk0E-tfeg It's a nightmare. Complete scam. I needed this for Polar: https://getpolarized.io/ Mind you... it's Open Source but I still want my users to be able to download it without warnings. No joke - it took me 2 weeks to get the CSC with about 4 hours per day working on just this CSC issue. It's just a labyrinth of insanity…
I did need to get into D&B, and it was a bit of a faff - their website is a maze, and it took around a week after filling the form to get listed. Didn't need much time on it though.
One of the other requirements I had to fulfil was having a telephone number published in a sanctioned list of websites for a callback - so I registered a Skype number, published the number, did the callback, and terminated the number. Not sure what that was meant to prove...