Well that was a complete bust....
Onepass service centre told me it was absolutely impossible...there was no way I could have my 2013 post merger card already as they weren't being sent out until next week.
That whatever I have it's not my 2013 post merger milage plus card...and that I would receive my gold card after the merger in March.
I never had a milage plus account...and it say expires 1/2013... and has all the 'new united' branding etc