ERP rate changed at AYE

Recently when I pass through ERP gate at AYE Alexandra, my cashcard doesn't get deducted. That's good news. At least save me a buck. On LTA website, I find out the new rate is effective from 29 May 2006 to 24 June 2006. Don't know what the rate after 24 June. The rate adjustment could be related to the school holiday. Now Singapore schools are in holiday. The traffic is obviously lighter. So kids do effect traffic, and the government is sure in agility.