Remove my fake film and some fake credits

Hello,

1. I added a non-existent film as a joke when I was younger and I would like to have it removed as it does not exist at all. The film is: https://www.imdb.com/title/tt13610360/ 

2. I would also like to remove some credits that I added back in the day when I want to pursue a career in sound, I though it would be useful to add some fake credits in my films. I have tried to remove them on multiple occasions, but they get rejected because I cannot provide any evidence. But how can I provide evidence that I didn't have a specific role?

My page is https://www.imdb.com/name/nm9251920 and the fake roles are:

• sound designer
• sound editor
• sound mixer

in the films https://www.imdb.com/title/tt7334094 and https://www.imdb.com/title/tt7355350/ . The rest of my roles in these films are accurate.

3. Lastly, I added a friend as a collaborator as a joke, he has not been involved in any roles whatsoever. The person is this: https://www.imdb.com/name/nm10243389/ and I would like to have the whole person that I added removed with his two roles, as I added him as a joke.

Thank you very much for your assistance.