They have no reputation. They don't even want to deal with what has occurred. They as you see even here at a forum, are silent. Any project which would estimate reputation at once, would ask everything the parameter and the ravine of my rates
As I can see from your screenshots, you are from Russia, so I suggest you to register on PD forum https://forum.primedice.com/ and discuss your problem in Russian section there. I'm sure they will answer all your questions regarding dicebot usage, possibility of "changing bets" on the part of PD etc. On a personal note, I can say that if that what you claim was possible, PD wouldn't be so popular and respected dice site. But after reading your posts I doubt that my words can convince you.
You may not believe I don't understand what reputation you're talking about if their support isn't even trying to figure out what happened
Any casino with a reputation would immediately start figuring out what happened.
And scammers they don't even want to communicate , just as you say about the fictional reputation
Reputation, by definition, is the opinion that people in general have about someone or something. Reputation has not been building up on what you personally think about the site, but rather on what most users of the site think of it. You can google "best gambling dice sites" yourself to be certain that PrimeDice has been almost always in the top 5, and sometimes #1, on various sites providing those ratings. If you were Emperor of Earth, your opinion would probably overweigh all those I've mentioned, but in the world we live in today we normally rely on the opinion of the vast majority of users.