Premier League rules state that visiting fans are allowed a minimum of 3000 tickets (or 10% of capacity if less than 30,000), but often reductions due to segregation come out of the away team's allocation
From my recollection it fell approximately 500 short of the total permitted for sale, and I thought the fan's that had joined the list had been ripped off, but then I thought it was at least 50 or more to get on the list.