Complaint Review: Just Brakes

I had vehicles serviced at just for brakes total cost $1700.
I was informed by manager that they would adjust/clean my brakes every 5k miles for life of warranty (on 3 vehicles).
All was going fine until last visit when they informed me it was a cost of $27. to do this ,when I asked to speak to the manager the employee telling of the additional charge stated he was the manager and had been for 3 years.I had not seen this person before that day ,to think that we would of missed each other on 3 sep brake jobs and on the many return trips to have brakes cleaned and adjusted is too funny .I asked where was other manager of which he still responded I have been here for 3 years as manager .I feel like I am being played for a chump.