GIVE RUNAROUND ON PURPOSE

So Miway approved my claim and I am supposed to take the vehicle in for repairs on Friday but now Miway gives me the run around in terms of getting me a courtesy car . The fist person I spoke to said that I must let them know two days prior to taking the car in for repairs so they can organize me a car. I called them yesterday(Tuesday) to let them know that I will be off on Friday and it is the only time I can take the car in, he then gives me a story about them being short staffed in the car hire department and that they cannot organize a car on Thursday and Friday, only Monday to Wednesday. this person then tells me that he'll call me back but he never did so I called them again and this time around it seemed as if there was hope because she said she'll have Avis call me in 2-3hours, but that did not happed. Today, being Wednesday, I waited for Avis's call but nothing. I AGAIN call Miway and I was told that they didn't notice that there was an error on their system and that's why Avis did not contact me. These people are delaying this whole thing on purpose knowing that tomorrow they will tell me a ******* story of not organizing courtesy cars on Thursdays and Friday. honestly, how difficult can it be???? I am so frustrated with Miway, it is the first time I claim since I have been with them and this is the worst service ever and I personally would NEVER recommend them to anyone. I should look for an insurance company that is not short staffed, this is *******