As a general rule, we are unable to take payment retrospectively when customers forget to pay for their parking or should their mobile signal fail, etc. This is primarily because the operator responsible for enforcement in the area may have already issued a charge notice in the interim. RingGo's parking service is designed to be used in the same way as the on-site payment machines, whereby the session begins at the point payment is made.
However, a few operators, mainly railway companies, do allow retrospective parking, for example, if you have to catch your train and don't have time to pay for your parking beforehand. This is known as 'Late Pay' and will be indicated on the local signage in the car park.