Vehicle declined by the dealer after an factory fault of clutch and damaged by their tower truck

My sister bought the brand new eco sport ford in okay Rola Ford at Robertson on the end of September 2016. I got a clutch problem with it when I was in earsten Cape around Christmas time 2017 I reported the matter to ford okay Rola East London and It was taken by the tower truck that was organised by Ford East London into my addressing with no dent or stretch on it, and even sign declaration form as to prove that which was around 28/12/2017. My sister couldn't wait fvmi adze ss or the vehicle and had to leave at Cape Town as they were busy with the investigation of the course at the workshop. The lady called Yanga at the Ford workshop called and told my sister that the vehicle can not be fixed under warranty because it has been driven into the mud and mishandled of which we couldn't understand. She sent her husband into the workshop to speak with them face to face. When he got there the car had a big dent into left fender and front bumper was loose. Now they refusing to fix the clutch under the vehicle warranty and they said about the dents that was caused by the tower it's not their problem of which she had never contact the tower and she didn't even pay them meaning ford had a deal with them or payed them on her behalf. The manager that my sister delt with was Rian smit.