I called CO today because they had my middle intitial as part of my profile and the MP/OP link kept failing. The CSR on the phone changed it for me and 10 min later I had linked the accounts together. She told me it takes 7-10 days for your status to update ( at least going from MP to OP)

I would think you're also entitled to call the UA Premier Exec 800 # which may be faster than the general reservations line. Sorry I can't provide it but I'm sure someone here has a link.