Incorrect Billing & Unfair charges

I received my Rental Invoice and not at all happy with the billing and charges received. When i booked my reservation online i received my confirmation docs and the amount for rental was R740 (R185 for 4 days), i received my invoice with a charge of R885 (@R295 for 3 days). R145 more. Can you please explain.<br> <br> My refuelling charges are also incorrect, i booked a month ago on the 14 October and my kms driven was 275 and was charged R211 yet now on my invoice my kms driven was 271 but was charged R284. Simply cannot understand the charges.<br> <br> I called Customer Relations, they cannot assist over the phone, they said to send an email, which i did only to be sent another mail to log my complaint on the site only for the site to reject my complaint because of an incorrect RA number, HUH, i have my invoices in front of me.<br> <br> Can someone please assist in understanding the additional charges cause they certainly dont make sense to me.