Monthly Cashback Flaw

I called Dialdirect on the 28th September and spoke to Mpho Molotsi who was in retentions who helped me to take out a new policy on a new vehicle.

I informed her I am to take delivery of the new vehicle on the 30th and inception date should be this day and cancellation of the old vehicle for same day as well as I was trading it in.

My monthly cashback was over R800.00 that I was to get back for the month of September however I only received a R20.00 odd which I was informed that the cashbacks run month to month, When I asked why I would not be entitled to last months full cashback, I was informed by Elekanyani Mpsuni my old vehicle was already taken off the system on the 28th September. How do you remove cover from a vehicle without consent from a customer? Now that over R800.00 was due to me I get not even 10% of it.