Sometimes, upgrades appear on the morning of check in. I very rarely use online check in on the day before check in unless a good upgrade appears on that day and I know the hotel is fairly full. Another point for future reference, I have never stayed in the Hilton Islington, but in my experience in having stayed at many UK Hiltons and Doubletrees over the years on room only rates, I have never been offered a continental breakfast as stated in Hilton's rules. It's always been a full breakfast. In the US, it varies from hotel to hotel. This won't apply to you as you've got a breakfast inclusive rate and you should change your MyWay preference to the points on this occasion.