Cartrack is the worst

Cartrack and their friends Nimble are by far the most unprofessional people i have ever come across. I got a statement from Cartrack in June this year stating im owing R2 795, later the same month I received an email from nimble saying im owing them R5 538

I received a call from cartrack to make an arrangement which i did, i told them i am unemployed and was advised to atleast make minimum payments towards my account. Which i did from July.

I have been making several calls and writing emails to cartack and friends for the huge difference on their statements so i can settle my areas Instead im always being transferred from pillar to post by both nimble and cartrack

When i call cartrack they tell me they are not aware of the 5k that is reflecting on the nimble statements On the other hand Nimble insists thats the amount im owing Can someone please explain to me why there is such a huge difference! I want to pay cartrack but i refuse to move from 2000 to 5000 in one month That does not make any sense