The price of postage, from the price of petrol and oil

Mornin' everyone.  If you were paying attention yesterday you will have seen that Australia Post (and StarTrack Courier) have had to raise their fuel surcharge from 4.8 to 12% due to the ongoing "Gulf War 3" which has affected the price of oil and therefore petrol and diesel worldwide.  That means the cost of postage has gone up, effective yesterday.  At this point, as I charge flat rates on all packages, (including a fairly steep minimum charge, but I do offer FREE postage Aus-wide for orders over $250) I am NOT upping postage rates just yet.  I don't know how long I can do this, it's literally a day to day thing at the moment as fuel prices (and therefore everything else) skyrocket.  So if you're thinking on purchasing from either the website or Etsy, right now, MY POSTAGE, PACKAGING AND INSURANCE PRICES REMAIN THE SAME.