Here's the link to the section you needed in the training portal: https://dovetailmktg.kartra.com/portal/mgsitlogin/post/279
With all the regulatory oversight going on with Facebook and their advertising platform, Facebook has been 'cracking down' on a lot of stuff lately, causing more dis-approvals than ever. This largely has to do with their own internal staff not even knowing the policies they should be following and enforcing policies haphazardly. What one person can get away, another may not.