The poorest service ever

I registered a claim with i-Wyze after damages to my car's door. The claims department contacted me after a month after the assessment was done to inform me that my door does not need replacing and that the damages were not as bad and that it can be fixed according to their assessor. The claim was cancelled by iwyze as the quotation was less than my excess. I requested the details of the assessment center in order for me to get it fixed. When I arrived there and the assessor completed the assessment, he informed me that they would not repair, but replace the door as the damage was to serious. Also, I run the risk of loosing my warranty with BMW as the metal has stretched that would make fixing difficult. I called claims and Mantshadi failed to allow me a chance to put my case. She would interrupt me continuously while trying to bring my point across. She insisted that the assessor's report indicated the door can be fixed and dismissed my argument that the assessment centre they claim to have provided the quote, cannot find any quote for my car on their system, hence I'm disputing due to this conflicting information I'm receiving. I wish to report this as the poorest service ever.