It sounds like you're dealing with the BM info500 rate, where 20% of the 500 ad accounts in your campaign are having funds withheld, and your current campaign postings are still failing. This issue is likely related to Meta’s risk assessment system, which can flag accounts for various reasons.
One common cause is billing and payment issues, where Meta detects irregular spending patterns, duplicate payment methods, or suspected payment fraud. If multiple ad accounts are linked to the same payment method, this increases the likelihood of funds being withheld. Another factor could be a drop in account trust score due to frequent ad rejections, policy violations, or suspicious activities.
If your campaigns have been repeatedly flagged in the past, Meta may enforce stricter limitations on new ad accounts. Additionally, automation or unusual campaign scaling—such as launching multiple ads at high budgets too quickly—can trigger Meta’s risk detection system, resulting in withheld funds or restricted campaign performance. To resolve this, you may need to verify your payment methods, diversify billing sources, warm up new accounts gradually, and ensure that your ads comply with Meta’s policies.