multiple authorizations causing billing havoc

I am being bombarded with unpaid bills and have made numerous phone calls to try and sort this out and all due to Discovery wrongly giving multiple authorization numbers for when I was in hospital. This is causing havoc with suppliers submitting on the incorrect authorization number(s) and making my life hell. I have spoken to at least 3 consultants that have promised to help sort it and whilst I get some issues resolved, it would seem that some keep revolving and evolving. Pls sort this out, this is exasperating!!!!