Last time I parked in a lot that required an app to pay, I just let them put a slip on my car saying I didn't pay and wanted me to pay extra, filed a dispute wi

Last time I parked in a lot that required an app to pay, I just let them put a slip on my car saying I didn't pay and wanted me to pay extra, filed a dispute with the company claiming the app didn't let me register my license plate. The company then told me my license plate wouldn't register because there were multiple people with that plate number in the lot. They let me pay the regular price online. Going to keep doing this.