For months now my ftb changes on a fortnightly basis. I don't work, no partner and child support doesn't change that often and I'm not on disbursement method. My youngest has just turned 5 so my part b has dropped but is continuing to drop below the max rate and I don't know why. Centrelink staff just tell me it'll right itself come reconciliation time but it's getting to the point I'm having to do new fortnightly budgets because some fortnights it's a big drop. What exactly affects part b payment to make it drop. I understand my child support affect the other parts but I thought ftb wasn't