There have been changes to the ratio's and staff education/qualification requirements, and I was chatting to our director and while our centre isn't effected as we have great ratios and qualified staff, many others are having to increase fee's by $50-100 a week in some centres to cover the ratio changes and increased staff required. I don't know when the new ratio laws come into place though, I'll find that out. I THINK it's July 1. Best to ask your centre though.
I am a centre director -I was only reading the media release for centres today - it's worth noting that the ratio changes aren't proposed until 2012 at the earliest, some can get exemptions from the changes up to 2020, so large fee rises shouldn't be necessary just yet, not until the proposals are enforced in two years time. The changes they are talking about by July 1st are quality assurance, such as a nation wide accreditation process for all centres (which I believe means C&K and other type kindergartens).
My centre is having a $3/day rise in the new year due to costs of everything going up, not due to ratios. Your centre should give you plenty of notice if they are increasing fees.