Terrible service from Discovery Insure

I am extremely disappointed with the service I received from Discovery Insure and their service provider, We-fix. They collected my iPad to assess and possibly repair/replace it. After 20 days, the device was returned to me, with the screen unattached, with a response from Discovery saying that the battery needs to be replaced. I see no problem with the battery as the device holds charge. I have made numerous attempts to try and contact Discovery, with no success, regarding the condition the device was returned in. Service of this nature is unacceptable, especially from a company which claims to put its clients first.