THE WORST SERVICE FROM BUDGET

Been with budget for 4 years now claim free. Recently had a 3rd party claim against me and it has been the worst experience ever. The 3rd party kept on calling me to call the insurance people to follow up on the claim, as he had sent through all the requested documents and received no feedback. When he finally received a response the claim was underpaid and they realized the assessor made a mistake. We had to call back trying to get it sorted and send through documentation that was sent in the beginning of the process. Two months later and the claim is not settled and I am receiving calls from the 3rd party again asking me to follow up as he is getting no where. They finally paid him and referred him to their 3rd party panel beaters Fix easy. Payment has been paid to the 3rd party panel beaters and now there is no response. The mechanic said he would call him back once the parts have been received and a week later no call. I tried calling to enquire about the progress and nobody can answer me or put me through to the mechanic. I am exhausted by the service received. I dont understand why we need to constantly call and follow up and basically beg for a service that we are paying for.