Bad Service

I took my car to the dealer for repairs only to find some electric component needs to be replaced then a claim was submitted with the company IUA Business solutions for warranty claims.The claim was assessed yesterday then they said documents were outstanding but the dealer sent everything requested by the company, today morning called twice to check if eveything is in order and was assured that everything was submitted, when I called again to check the progress on my claim was told again that something was outstanding again. I am getting ****ed of taken back and forth by the company, the sad part is when I made a payment to the at the begginning of the contract they did not take me back and forth and when they have to honor their contract I have to run around like a headless chicken.They are doing business in bad faith. I dont think that I will ever do business with the company again in my lifetime. What I need to know from them is that will they authorise or not instead of taking me back and forth