Is there a way to add or delete a streaming provider to a drama?

I noticed that a drama I'm watching doesn't show that it's available on Amazon Prime, as that's where I'm watching it.

I'd like to be able to provide that information.  

And same for when a show I'm trying to watch says it's available somewhere, and it's not.

In any title(movies/dramas etc.) page, you can find Edit this page (locate at top right) button, and from the dropdown menu click on Services option. This will take you to streaming service provider section of the title. Follow the>> mdl guidelines before submitting your edit(important, if it's your first ttime doing this). To remove an existing one, do check whether it's a case of region restricted title or not.

Thank you so much, that was  super helpful!