This suspension is usually not about how long the account has been active. Google can suspend even old accounts if the system detects a risk. Google check not only the ads, but also business info, contact details, claims on the landing page, payment methods, and any mismatch between the ads and the site. If you already appealed twice, don’t keep sending the same appeal. First fix everything that could look suspicious, collect proof that your business is real, and then submit a detailed appeal with documents/screenshots.