Once again disillusioned. Forcing us to change doctors

Our GP Practice that we have been going to for around 12 years, is suddenly no longer on the extended benefit list. Was last year. So now Discovery will not pay and if we dont like it, we have to find another GP. So much for the years of good service from the GP and the history they have of us. I am just getting more and more disillusioned with Discovery by the week. Every excuse under the sun not to pay.