No empathy for clients

Our car suffered hail damage while at the mechanic. My husband registered a claim for hail damage. We were told that it would be uneconimical to repair. The car was fetched from us two weeks ago. On the day that the car was collected it started making a noise in the engine again. The mechanic said that he is willing to fix whatever is wrong since he worked on the car and we paid him. Miway now wants to get another repairer involved, which they will have to pay. Why??? The mechanic that worked on the car said he will fix it and carry the cost, since we have only been driving the car for less than a month. Why does Miway want to write the car off, have it repaired by someone else and pay out less on the claim. What does write off mean? The claim that was registered was for hail damage and Miway decided to write it off!!! So now we are still left without a car and my husband is an insurance assessor, which means he cannot work! This is really unfair, but you are quick to not cover damages when 1 premium is not paid. We are going to the Ombudsman with this nonsense and I will make sure everybody on all social media platforms hears about this.