Cancellation of repairs without notification

A claim was registered at MiWay for repairing my daughter's car (Cherry QQ3) 2014 model. On 13 April 2016, I was contacted, and was informed the claim was authorized and to be informed the excess to be paid is R5000. At about one o'clock the afternoon I was contacted by MiWay to say my daughter was not specified as the regular driver, and therefore i need to pay. R10000, I did mention that I will cancel my insurance afterwards, as I did pay my installment on time. This morning when we went to the panel beaters, I was told that the claim was cancelled from MiWay, I was not informed. I instructed the panel beaters to continue as I will pay it myself. It also came to my attention that the quote sent to MiWay from the panel beaters is under R7000 and I was told by MiWay its over R14000? Can you please assist in this matter?