Fedhealth Doesn't Pay or Reply To Emails When I Ask Why

Dealing with Fedhealth is ALWAYS a battle.

1) Their call centres are staffed with people that only seem to know how to redirect calls.

2) I have an oncology benefit because I have cancer. Fedhealth have stopped paying my specialists, with whom they have fee contracts, out of this benefit. I must now pay. I've emailed 7-8 times in the last two weeks - to multiple email addresses - and no one is responding, no one is answering my question:

Why am I paying you when you don't cover what you claim to?