I found a transaction I didn’t authorize on my bank statement—how do I respond? If you notice an unauthorized transaction, act quickly. Contact your bank immediately and report the issue. I found a transaction I didn’t authorize on my bank statement—how do I respond? Take steps to secure your account and prevent further fraud. Always monitor your bank statements regularly. For help, reach out to customer service. WhatsApp: 15037536504 | Telegram: @jiaboZhang88. I found a transaction I didn’t authorize on my bank statement—how do I respond? Stay alert and protect your finances today.