Where can I get a copy of the GG OVS Downgrade Policy Channa referenced in an earlier post?

On Saturday I was on a reward first ticket from SEA to CLE. 24 hour auto checkin had me in 2E which I had been in for a while. I decided to check my bag instead of hauling it to the N Gates and on the train looked at the BP and it said seat 21C. I went to the United Club and they were no help and told me to call the MP number. I called the 1K line and was told that I was booked in F but had seat 21C and he couldn't tell why but that all changes were locked and to talk to the GA. I went to the gate and was told it was equipment change from an A320 to an A319. (When I booked the ticket in May it was a 320 but had changed to 319 a while ago) I said that the equipment had changed a while ago and that as a "paid" F even if I "paid" with miles, I should only be downgraded after Premier Upgrades. The GA was told me that she couldn't downgrade the person in 2E even though it was a comp according to the upgrade list. I also pointed out that on Fri First was only showing booked 7 although I couldn't prove that. I was told that I would get a $150 voucher and return of some miles. I told her I wanted a seat in F as that is the cabin I booked and what was on my original BP. Eventually I got 1A and I others got downgraded. If I hadn't been persistent I would have been in 21C. I read the thread Channa linked to in post 82 but that was PMCO so I'm trying to find out what the real policy is now and I can get a copy of it.

Thanks,