Thanks Um (and Herman).
A 4th choice would have been a fine thing. We come under Worcestershire and can only nominate a total of 3 schools for year-7 entry!
A very important point for those living in Worcs with only 3 choices (2 in practice because you have to include your local catchment school as 3 choice)
If you find you were unable to include another KE School that you would have qualified for but couldn't include because of Worcs stupid rules, then you could speak to the KE Foundation and ask for advice regarding changing your CAF order - this has been successfully done before - there are precedents.
If they agree then you would need to speak to Worcs LEA and request CAF order change - they will agree if pushed. KE Foundation has told Worcs on many occasions that a choice of only 3 in unfair.
In this situation you wouldn't get an automatic slot but you would be put at the top of the waiting list