A5 starter motor problems

Been very unlucky with my Audi . Firstly I had the major oil problem that Audi took care of for me but now I have another known fault with this model & I am being told it’s going to cost me £1400.00 & there still might b something else as well. Been to the CAB & they referred me to the ombudsman service, I file has been created but I’ve been told in the interest of fair business practice/ trading I need to give audi an opportunity to try & resolve it & only then if unsuccessful they will start something on my behalf. Not sure about this now, Audi have always been helpful not sure why they are treating me like this. If it was not a known fault I would just get it done but it is. Any further advice would be appreciated & I will keep you updated on what happens.