Ripping the hell out of us

I bought a car in May 2024 Haval at haval the glen. I am paying well every month though their instalment is very high. Its scary. My problem is, yiu cant get hold of these guys.they don't even post their adress so that we can physically go to them like other institutions. Now out of the blue they sent me a new de*****eck mandate which i mistakenly accepted. Imagine it says total collection for this March month will be R9365.35 for Haval Jolion 1.5 city. 💔💔 😭 I cnt get hold of them to get clarity. Im even thinking of returning their car and save their instalments including insurance money for 10 months and buy a car cash. New second hand. Ill use old mutual insurance on it.. Marquis finance is very bully. Why hide your adress if you are truthful. Why don't you communicate with your customers when we send emails and or pick up our calls. Your service is a complete bull.ill return your car. If you take my R9k+ this month im returning your car and stop your debit order and change banks.. Im not a business man so it wont be difficult for me. Credit bureau won't kill me..