toyota finance complaints department does not keep up to promise

hi, i have logged a complaint with your department more than 10 months ago and was advised that i will get feedback. i was over charged on both vehicles purchased from Durban South Toyota. we have spoken to 5 people this morning and no one can help- being pushed from department to department. ive called 27 11 ********** and then dialed another complaints number + ********** 2300 the call was dropped on me 6 times,

toyota owes me money due to ********** activities that was completed by their employee in Durban South Toyota. i have flagged this to the management in Durban South and even had contact from the complaints department who mentioned that they will investigate and provide feedback- it's been over 6 months now.