A West Australian security firm has been ordered to repay $740,000 charged to customers after missing 48,000 patrols.
Wilson Security will fully refund the 320 corporate clients, which it promised internal security patrols but often replaced with cheaper, faster external rounds.
The company missed 48,000 patrols between July 2011 and September 2017.
The Australian Competition and Consumer Commission's Sarah Court says customers had been unable to check if the services they were paying for had been delivered.
The commissioner says Wilson Security had admitted that by charging clients for services that were not provided, it had engaged in misleading or deceptive conduct.
The company says it will improve monitoring of security patrols and national staff training.