used to be the best till its time to pay

i was doing a 3rd party claim which they client was totally at fault in the accident they client hit my car from behind and i ended im smashing into another vechile from the inpact,both clients are insured by miway but then miway reffered they lawyer to assist the lawyer rejected my claim and denying that they clients car hit me from the back .so they only saying the client car infront was not at fault ,my claim is for they other client which hit me from the back which they now ignoring my car is sitting at home for 3 months who is going to be responsible for my installment ,i will take this matter further until they solve this problem i will be putting them up on social media and going to court