Downgrade delays

The downgrade of my accounts from Premier to Gold has taken over a month. I am still waiting for my Credit Card to be downgraded - after being promised week upon week that I will be contacted by the Credit Card department. I keep calling Premier Banking - everyone promises to escalate, but no one ever resolves this: despite the promises that it will be done. The banker assigned to this hasn't responded to my calls or emails in three weeks. I am paying the fees for Premier despite the fact that I have requested a downgrade a month ago. I'm at my wits' end.