misleading a customer

I bought a polo 1.6 triptronic in 2014 december my salesman was Jayendran ..it was not brand new it had 22000 kma on the clock and i recieved a discount from the original price and told the lady who was helping me to add service plan and maintanaince plan and she said all was added only to find today when i took my car for brakes to be fixed o only have a service plan ..misleading a customer is very wrong according to the new credit act its best to inform the customer if the deal did not go thru and not stay quite just for the sake of making a sale .Im very dissapointed about this especially such a big company such as VW to mislead me in this ...things like these should not be taken lighlty as it really damages the image of the company and word mouth is a very powerful marketing tool.