Terrible service and bad attitude regarding claim

Was in an accident last week Friday. Our car is insured with Discovery and the trailer with Outsurance. Excellent service from Outsurance. They'ce assessed the trailer on Monday, and they've already paid out the trailer. However, we've never received communication from Discovery. If we phone in, they tell us that they are still waiting for the assessors. We are still not sure whether the assessors went out already. Almost a week now, still no communication. I've asked to speak to a manager yesterday. They've told me the only manager is out of office, but will phone me back before end of business. No such luck! I've phoned this morning, the lady handling our claim refused to put me through to a manager. She really has a bad attitude and try to argue with me regarding her service! I will never ever insure anything at Discovery again! Outsurance seems to be the best!!! I wonder how long do we have to wait for the assessment of the vehicle?