Mazda of Hamilton

Avoid this place’s service department like the plague. I bought a new car from them and been bringing my car here for service for 1.5 years. I’m incredibly patient and let the little things go but the new ownership that has taken over has the worst customer service I’ve ever experienced. Under the new ownership, they offered me 4 free oil changes for a long standing issue I’ve had with the car. After 2 of the 4 oil changes, they backed out of our agreement stating the deal was made with the previous owner and not the new one and would not carry over.
What they said was false and I had dates to prove that the deal was made under new management. They had raised the cost of an oil change for my car to $ 89.99 and refused to honour our agreement. I asked to speak with the new ownership or someone with authority and that was also refused. Gave me an email address to write my concerns to and so I did.
Their Director of Operations responded to me after I had included in my email what had happened and requested an official statement of when the new ownership came into effect to prove I was right. The director refused to answer me after multiple emails and then proceeded to blame everything on the service manager. The director told me in our emails that the service manager made bad decisions and was removed from his position. How incredibly unprofessional is that for a director to act? The professional response would be «the service manager is no longer with us» or «he’s now in a position better suited to his skill set.» The director should not have told me the service manager was demoted.
Acknowledging that the service manager made bad calls, the leadership should be responsible for the actions of their team. Instead of following through and making the customer happy, the ownership blamed the service manager and told me I am SOL. They backed out of our agreement dishonestly with reasons that were false so how can I trust them to handle my concerns and take care of my car in an honest manner?