Insurance delays

Hi I need help regarding my claim with Holland insurance, my claim was registered on the 3th of November, I payed excess fee on the 5th of November, iwas advised to check the device I want I did that I call add tell them which 1 I want,after 2days I received a call that it's out of stock they were 3 options that they asked me to choose from, and I called them those 1 no,they ask me to check and inform them when I found something, I called on the 26 November I told them I found it,they told me they wll place an order it wll b delivered in 3_5 day's, on the 6th of December I called them I didn't receive the device, what they said is they wll check what's wrong with their supply and they wll get back to me which they didn't call,I called them again on the 8th they told me the same,I called again on the 9th and 10th the same story, 13th I called again the same on the 17th I called again the same, what's pains me is I'm the 1 who's calling they don't, what they do is promise to call till this date I'm waiting for their call, pls help