Pathetic service

So I sent in claim forms for 2 of my devices to be repaired on the 13th of January already. The delay in responce is so slow. So EVENTUALLY when the courier was sent to collect my one device I noticed its gone, Im assuming ****** but I have no proof. So I sent an email stating the situation and I was informed I now how to only submit the following...New claim forms, Police Affidavid and copy of my ID, which I did, again days go by without communication. Then I get told oh no sorry you need a seperate affidavid for each device(why I dont know as birh devices where together) and I need to now blacklist it and have a case number. So why could this not have been said in the first email. Now I get yet another email saying I must make payment for the excess for the repair but I have sent in the NEW claim forms in twice already. Im gettin so frustrated with this I dont even want to phone in because I know I will lose my cool and havea heart attack because this service has been the most pathetic I have ever had to deal with. Im honeslty taking my insurance elsewhere because I can not deal with this level of incompotence. This has been going on since the 13th of January up untill today...Im still waiting for a responce ro the mail I sent in two days ago. So it takes 4 months and counting for a simple claim.