Lack Of Feedback And Illtreating Clients

I have registered a claim with SBIB on the 17th of January 2020 and it felt like I had visited a place where i am not welcomed. The manner in which SBIB treated me is saddening. No feedback during the processing of my claim. they only started working on my claim when I followed up even though I provided them with all the information required for processing my claim. I have sent an email complaining about this lack of feedback and arrogant attitude from their consultants and five days later I have not received any call still. Same with their repairer, they only started ordering parts when I called to follow up. they only told me that the contact details that was sent to me via SMS were incorrect when I called to follow up. I currently have a rental car from SBIB and I want to put it on record that the rental car cannot be taken back unless I get clear explanation as to why car hire expired before repairs are completed. I have gone from angry to being sad, never been treated like this even by people I am not paying any cent to. If only I was ever important as a customer I would request for someone superior to listen to all the calls I made to SBIB.