Okay
Never had such issues in the past. So maybe this could be a temporary issues.
This is what the agencies are claiming it to be "facebook is currently fixing this issue". But tbh I think they are just saying whatever to make the client happy. I was able to find this regarding that issue:
Common Reasons Your Page May Be Taken Down or Have Limits Placed On It
• Not all admins of your Page have authentic profiles: Creating an additional profile to impersonate goes against our Community Standards. Make sure all admins of your Page represent themselves authentically with the profiles they create.
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People who manage your Page have acted against our Community Standards: Facebook is a place where people connect with each other using their authentic identities. Profiles that don’t follow our Community Standards or go against our Terms of Service may be removed from Facebook. Make sure you only add admins that you know and trust to manage your Page. Regularly check to see all the Pages you manage and remove yourself from any Pages you no longer actively manage. You can also check all of the people who have access to your Page by going to your Page Settings and clicking New Pages Experience, then Page access.
• Your Page has a misleading name: Facebook limits a Page's ability to make a significant change to its name that might cause people to feel misled. If you need to change your Page's name, make sure it accurately reflects your Page. Learn more about what's allowed.
• Your Page posts content that may mislead people who like or follow your Page: In line with our commitment to authenticity, we don't allow people to artificially boost the popularity of content, or engage in behaviors that go against our Community Standards. This includes misleading people about their identity, and who or what the profile or page represents.
• The content posted on your Page goes against our hate speech policies: Hate speech isn't allowed on Facebook because it creates an environment of intimidation and exclusion, and in some cases may promote real-world violence. We define hate speech as a direct attack on people based on race, ethnicity, national origin, religious affiliation, sexual orientation, caste, sex, gender, gender identity and disease or disability. Learn more about our hate speech policy.
• Your Page has severely or repeatedly violated our Ads Policies: Our Ads Policies provide guidance on what types of content is allowed in an ad. If you severely or repeatedly violate these policies, we may disable your ad account and take down your Page. If you believe this was a mistake, you can appeal the decision through the Policy Disabled Ad Account Help form or through Ads Manager. Learn more about our Ads Policies.