Terrible/Unreasonable service by Iwyze insurance

I put in a claim for household contents that got damaged in the beginning of November 2022. I was then (rudely) requested to do a claim assessment by an assessor. I asked the agent whether they would be sending an assessor. She rudely responded by saying I have to find my own. I then asked where should I find one. She said “I don’t live in your area so I don’t know”. I then informed her that I would do the assessment myself because I don’t work with these kinds of things on a daily basis so I wouldn’t know where to start with finding an assessor. She said okay. I then did the assessment (myself). She then responded to my assessment by requesting the details of the assessor. My assessment form clearly has my name and signature. During our telephonic conversation I pointed out that in the case of a car accident, the insurance company sends out assessors to asses the vehicle, why should it be any different in this case? Am I expected to load an entire fridge to an assessor( whom I have no idea where to find?) The service is just terrible and unreasonable. Notwithstanding, the claim has still not been finalised.