I had a similar issue recently. I had requested an upgrade sin>lhr from Business to First and had to change the date of my flight.

I asked the telephone consultant to request an upgrade for me on my new flight, and she did. When I checked online later, the upgrade request was there, but instead of saying 35,000 points was required it said 3,500 points.

They must manually type in the amount of points required for an upgrade....would be interesting to see if it cleared even with an incorrect number of points "required".

In my case I had to change my flight a second time, and this time the correct amount points required was entered...