Having just had to renew my JAR licence myself, it should be pointed out that this a stupid requirement!
My Australian ATPL is permanent (i.e. never has to be renewed), and the validity is simply based on a valid medical, and a passed check within the last year. Paying a load of cash to the UK CAA, just for someone to press the "print" button on the computer to renew a licence for another five years is a complete waste of time and money.