User Activity

Is anyone aware if there is a "period of grace" after 4 January, where the old letter rates will be accepted without the recipient being charged for underpaid postage? In the past there has been an "unwritten period of grace", sometimes two weeks or ...
Today, I handed a pre-stamped parcel [$7.45 up to 500g) over the counter of an Australia Post Agency in a newsagent as I have done many times before, expecting to have a tracking number stuck to the parcel and be given the tracking number and a lodge...
http://pages.ebay.com/sellerinformation/news/fallupdate2015/seller-standards.html
I have read on a number of discussions about the delays through some of the AP facilities, namely Chullora NSW and Sunshine West VIC and perhaps others. Sometimes mail moves fast, sometimes it seems to be caught up at AP facilities for over 10 days ....
After agreeing to a refund and even offering to pay for return postage, instead the buyer opened a Paypal dispute to which I immediately agreed to a refund via Paypal. Buyer has left horrible, slanderous feedback and after ebay said they "would not" ...