No Life cove due to illness

I've been customer for 5 years at Outsurance NEVER had any problems with them. I app**** two months ago for life cover took about an hour to apply and they said everything is in order. Today I called to find out what is going on cause no debit order went down. They said due to the fact that I've been treated for depression they can't cover me. My depression is been treaded for 6 months now and I'm doing so well. Maybe I must consider new insurance company????