There are some descrepencies in the exact numbers mentioned but it's thought City were initially offered between 1600 and 1750 tickets. Now that's been increased to 2,500.
A full announcement from the club is expected around 11am detailing any possible rules that will decide who is eligable.
The Supporters' Club are saying that the extra allocation will be lower tier tickets and available to Supporters' Club members only while the majority will be on sale to Ambassadors, ST ticket holders and Away members for the Upper Tier. The announcement should clarify if you will have needed to have been to at least one away match or if they will be generally available to qualifying supporters.
More on this later.