Poor customer service with no escalation option

Service plan expired two months ago. Vehicle has only done 37k and only had 3 of the 4 services included on the service plan. Two months ago, I went to the dealership to get the 4th service done under the service plan, but they told me to come back in two months (annual interval) because the mileage was not on the interval yet. Come back two months later only to be told Ford will not cover the service because the service plan has now expired. They advised me to speak to Ford SA customer service, which I did but they refused to let me speak to the decisionmaker. Hiding behind "procedures and processes" to insist that the service plan has expired and no goodwill can be extended. So the customer is forced to pay for a service that was meant to be included on the service plan. Meaning Ford gets paid twice for the same service. The stonewalling I received from the customer service department, refusing to let me escalate the matter and speak to the manager responsible for the final decision, is what lead to this review.