Poor customer service experience relating house insurance

I took out car and house insurance with Discovery in March, nowhere in the call was I told to list specific items nor did I have the ability to do so on the app as I did not have to fill anything in. I recently dropped my phone and the screen broke, I submitted a claim on the app. A week later a lady phoned me to obtain more information about the claim for my phone. I asked her to request the queries department to phone me after 3pm that week so that I could query why I never had the option to list my phone or laptops on the house insurance. Two weeks later, I get called by a Discovery lady, stating that my claim has been rejected as the phone was never listed, the 19th of May. I request, yet again, to have the query department to contact me and she said she would. I am still yet to receive a call from them. I am extremely disappointed in the service that has been provided to me. There is no point in me having house insurance if I never had the opportunity to specifically list items or had been informed about it.