Extremely not happy with the service at all, i mad...

Extremely not happy with the service at all, i made several apointments to get winter tires put on, i went for the first time and upon checking with a service advisor, they told me that they couldnt find my name in the system which i had bookes an apointment long in advance so they booked me again for another apointment, well the same scenerio happened again were they couldnt find me in the system so i went back home and decided to call them so i called over the phone and advise them id be coming in on the saturday, well they service advisor advised me that they dont do apointments on saturdays and that they advised me to just show up, well saturday arrives and i go to a service advisor asking to get the tires changed and advise them that my tires are stored at their dealership, well she then advised me that i needed an apointment so i lost my cool and advised them that i will be making a formal complaint cause now this is getting ridiculous and unorofessional that i cant even get winter tires changed because of there mess.