Nissan Pulsar 2013: Additional service costs?

The advertised cost for the 18-month service on my 2013 Nissan Pulsar was quoted as $223.23. But the total cost was increased to $497 by tyre rotation, throttle body and intake system clean and fuel injector service. The advertised cost of the 24-month service was $455.93, but the total cost increased to $551, as it was recommended the aircon be cleaned and sanitised. Three of the additional services were "recommended" to be carried out every 12 months. If these services are recommended and required to ensure the serviceable condition of the vehicle they should be included in the capped-price service program.