OMNY charges you $2.10 for your 12th ride. When you see a $2.10 charge on your account, that is an indication that your 12th ride was captured. The 12-ride cap is governed by OMNY policy, so they would be best suited to provide further insight into why you might be experiencing charges after your 12th ride. We do not have control over OMNY's system, so we unfortunately cannot speak to why they may not be recognizing your 12th ride.