Rude and poor service

I submitted a claim with them 3months ago and they claimed that the email i used is not the correct one and i submitted again, i was told to wait for 45 days for the process to be concluded. It has been over 45 days now and they are telling me to still wait again the claim is sitting with management and i asked them what should i do in the mean time because i use the car for business and their consultant was rude