Our airfield was going to be cut off unless we paid up, that is until we asked why some airfield had an extension. The result is NATS backed down and we have another two months.
Due to the cost we will probably terminate the service and let pilots file their own plans.
However, if we did not have the service, would we be notified of incoming aircraft on a flight plan? This question was asked but NATS will not give a direct answer, the implication is that they will but won't admit it.