BetterSure - no WorseForSure - Very poor system, failed commitments, no service

Worst service I've experienced in all the years of insurance products from variety of companies. I was sold a homeowners building insurance policy by them. The app and levels of service was hyped up by the salesperson with a 'very sincere pitch' of its the best service of all companies, and she uses it personally, and the app is amazing and I can do all my claims there, etc.

My first claim: I registered the claim 3 times over numerous days on the app. No response. I called and registered the claim - they had no record of app claim. They appointed a contractor who arrived without scheduling an appointment at all (while I was out - very frustrating and unprofessional). Then 3 subsequent appointments we (actually) made, they never pitched. After numerous calls and wasting all my airtime, I got through to a manager at Bettersure who assured me he would sort out the whole claim, and he would see it through to completion swiftly. He appointed a new contractor. Then called to see if I had heard from them yet. Nothing from the contractor. Nothing from better sure. More than a day and a half later I followed up again with Bettersure... they said the contractor had an appointment to meet me the day before !?! (But HOW no one arranged it with me, and I was there and no one pitched). I was promised a call back from manager - nothing. I've written into their customer care email address - not even so much as an automated response - nothing. No listing of the claim in the app. No sms of a claim number. This is all around the worst system I've ever experienced!