Collection Services Complain

Im Zanele Dube Wesbank repossessed my car in March 2018.My Reference number is ********** 6389 my concern is my account settlement was R111000 in November 2017and the car was sold for R117300 in May 2018. Now Wesbank claims that I still owes them R6222 but according to my calculation they owe me the difference of R6300. They said now I have been handed over to their Attorney 's. I need your help U don't owe them anything, they owe me. Kind Regards Zanele Dube cellphones number ********** / **********