DaleyDFC: I considered waiting for a date closer to home and was told if oyu don't select a date with 2 weeks of receiving an email inviting to to book a date, your aplication can be withdrawn. However, a quick call to HR will sort that - if you know you can't do much for a while, they 'suspend' your application until you come back and are ready to continue.
Abz217: That's all the learning info - the rest of your time will be spent practising the tests I guess!