Not happy with lack of info

On Tuesday I had a mechanical brake down and my car was sent to Hyundai on Wednesday, it been a whole week and I'm still waiting for a response on my claim. When I call the call center they tell me turn around time is 24 to 48 hours and my claim had be handed over to the under writers and I will receive an email on the progress via email, this claim was escalated on Friday last week till now I'm have not received feedback and my hascar stuck at the Dealership. I have to call ever day to be told to wait for an email that does not arrive.