It is possible to defer https://www.gov.uk/government/uploads/s ... 508400.pdf
13. Cases of hardship may occasionally arise where a student, who depends on
obtaining employment during the vacation in order to meet financial or vocational
commitments, is summoned for jury service before taking up such employment
and is subsequently refused payment for loss of earnings, because no actual
loss of earnings has occurred. Where an application for excusal or deferral is
made by a student on these grounds it should be treated sympathetically,
otherwise genuine financial hardship may be caused.
14. Applications for excusal from teachers or students during term time, and
particularly during exam periods, should be deferred in the first instance.
Paragraph 4 (above) applies.
- you have to identify times in the next 12/12 when you are free - presumably would have to be the next summer hols (unfortunately)