Block List Setup for Social Media

I'm seeking assistance with configuring block lists on both Instagram and Facebook to prevent specific personal accounts from viewing our paid advertisements. We've previously attempted to utilize the block lists function for testing purposes, but unfortunately, the intended participants still had visibility on our campaigns.

Key Requirements:
- Expertise in setting up block lists on Instagram and Facebook.
- Experience with social media advertising and understanding of platform functionalities.
- Previous hands-on experience in using exclusion lists and custom audiences.
- Problem-solving skills to identify and rectify any potential issues in our current setup.

As part of this project, I would appreciate a thorough review of our current exclusion lists setup to ensure maximum effectiveness. Thank you.