Account billed without any contact with me

I'm a uber partner who has a vehicle that is leasing with westbank and i got into a shock when i checked my account with uber to find that I'm going to be billed R5467.52 instead of R2231.45 that was emailed to me by westbank according to the weekly statement, so i went to westbank and was given a phone at reception to speak with a useless ,rude and *********** consultant by the name of Thabang Moroke who reports to Francis Quinn.Thabang advised that this was a late billing from July when i was in an accident, i had let them know that the car is still at repairs and they had said to me that they will contact me for arrangements to bill the account that was owing so since July according to Thabang they couldn't 1 call me to arrange for their payment and 2 my account gets debited without any notification, no emails we sent to me instead they sent emails to thank me for keeping up with my payments , the pathetic response from Thabang Moroke just made me realise that we're suffering as partners of Uber because we're just mere drivers and westbank can do anything anytime they feel like - i want this taken up because even at the time of the accident their insurance Vum(vulindlela ) didn't pay as their contract states i am so fed up ,i will be returning their vihichle back because this is RIDICULOUS!!!