Apparently Royal Australian Mint came to know about our complaint and they are now putting 5 million pieces of each denomination in circulation.

Mint cashes in on 50th anniversary
The Royal Australian Mint has made a special release of the entire suite of Australia’s circulating coins to feature commemorative designs recognising the fiftieth anniversary of decimal currency.
More than five million coins of each denomination will enter circulation, with the designs appearing on the heads of the coin along with the effigy of the Queen.
The Mint said this would be the first time unique designs had been applied to the five and 10 cent coins.
Chief Executive of the Mint, Ross MacDiarmid said the 50 cent coin would be the first to enter circulation, with the rest of the denominations distributed as demand arose.
“We hope to see the 50 cent coin very soon in our change and, for a limited time, the public will be able to contact the Mint and purchase a pack that is made up of 20 50-cent pieces at face value of $10 plus postage,” Mr MacDiarmid said.
“With these orders, we will also send a free circulating coin folder so that the public has something [with which] to collect all six coins throughout the year.”
He said during 2016 the Mint would run the same promotion with the other denominations for a limited time to ensure the public had access to these coins.
Mr MacDiarmid said complementing the coin release, a new book, Inside the Vault: The History and Art of Australian Coinage, had been published.
He said the book by Peter Rees, launched by Governor-General, Sir Peter Cosgrove, delved into the world of Australian coinage history along with never-before-seen sketches and photographs from the vaults of pre-eminent Australian institutions and private collectors.
Sir Peter said that Mr Rees had captured Australia’s rich coinage history, providing a great historical record for all ages during the anniversary year.
Assistant Minister to the Treasurer, Alex Hawke said the history of modern Australian currency had never been told in such detail.
“Peter Rees has ensured that all of the key developments over more than 200 years are told to unify the story,” Mr Hawke said.
Source:
PS News