Ask HN: AWS account restricted 18h despite remediation (Case 177385077300217)

A startup (Qcart) is experiencing a total production outage across multiple countries after AWS Trust & Safety restricted their account due to an exposed CircleCI access key. Despite deleting the IAM user, rotating all credentials, and confirming remediation 18+ hours ago, they have received no response from AWS's security team. They are seeking advice on how to escalate and get a human review of their resolved security flag.