Last month I bought Toyota RAV4 2018

Last month I bought Toyota RAV4 2018
Charles was sales person I liked his service

But I am not happy with their service team I have some problem in my car and few things I want to know but no one reply me
I bring my car into service and ask them to tell me about car That lady said you have to fix appointment and come again and I already had appointment
This is not a good gesture