Poor customer service and poor attitude from the consultant

I started my day with full of joy and somewhere during the day the lady from planet 42 by the name Tsako make my day worse. Yesterday i send the email to planet 42 requesting a tracker system report and my name be added on the vehicle tracker system. the lady was supposed to give me feedback related my request she just jump telling me that i have arrears on my account and this was arranged and i have a prove of the email from planet 42 to jump 1 month payment due to some technicalities that they have made during the signing of the contract. Now i want to send back the car and cancel the contract as per the lady that i can return the car and send them email. I was very happy with planet 42 and the car I'm driving but because of the attitude of the lady i lost it. if planet 42 employed people that they don't care with the customers just care with money. Please can someone from planet call me to discuss the cancelation of the contract I'm really done with this company. When you report something or problem with the car, they don't give you feedback you can send them 10 emails.