Johnson Lifts — monthly maintenance not done as per agreement

Address:

492001

I have purchased johnson lift from local dealer at raipur chattisgarh... Initially their approach from salesperson was good enough that made me purchase this lift but since then every time i regret my decision. Since installation of lift at every point they have tested my patience and even installation team members saying that they haven't undergone any training for this model of lift and they r trying there best to understand circuits!!!
Now after many issues during one year they pursued me for yearly maintenance contract and even after one and half month of starting agreement still they have not sent any person for maintenance... So what action should be taken against company