http://www.tfl.gov.uk/tickets/faresandtickets/1018.aspx
---quote---
The 16+ Oyster photocard scheme will close temporarily.
The Post Office will not accept 16+ Oyster photocard applications from
1 July until 31 August 2009. Applicants can apply as normal from 1
September 2009.
The 11-15 and 5-10 Oyster photocard schemes are not affected.
Customers may continue to order duplicate Oyster photocards online at
tfl.gov.uk/photocard or by calling 0845 331 9872. A £10 is payable by
credit or debit card.
---/quote---
Why's this happening?