Yes, we have a souce:
Please refer towards – Upcoming Australian and New Zealand Dollar Price Changes for World of Warcraft Services and Subscriptions
Thy source, has been provided. 
I’m not sure about others, but for myself – an email from Blizzard was also sent out.
For those curious – The email reads as follows:
Hi {Account-Name}
We are providing notice that we are adjusting the Australian dollar (AUD) prices for World of Warcraft® services and subscriptions from 7 February 2025 AEDT.
As a courtesy for current subscribers, you will keep your current price until 11.59pm on 6th August 2025 AEST. You will not be charged the new price until your next billing occurrence after this date and time.
The new price for subscriptions is AUD$23.95 for one month, AUD$55.80 for three months (AUD$22.35 per month), AUD$124.50 for six months and AUD$249 for twelve months (AUD$20.75 per month).
If you would like to review your World of Warcraft subscription and payment method, you can do so through Blizzard Account Management at any time. If you wish to cancel your World of Warcraft subscription, instructions to do so can be found here
https://links.battle.net/f/a/yl0GQcCowlV1sJ18Mh2AfA~~/AAQRxQA~/RgRpXwi4P0S1aHR0cHM6Ly91cy5iYXR0bGUubmV0L3N1cHBvcnQvZW4vYXJ0aWNsZS8xMjQ0OTI_dXRtX3NvdXJjZT13b3ctcHJpY2UtaW5jcmVhc2UtYW56LTMtMjAyNTAxMDYmdXRtX21lZGl1bT1lbWFpbCZ1dG1fY2FtcGFpZ249bWFya2V0aW5nLWF1LTMmdXRtX2NvbnRlbnQ9dGV4dC1saW5rLWhlcmUmbGlkPXl4bXkxMXp3aTA4aVcDc3BjQgpneLiDfGcHTEkUUhRhdXNzcHJpZXN0QGdtYWlsLmNvbVgEAAABYQ~~
For more information on the price increase, please visit our forum post.
Thank you,
The World of Warcraft Team
Hopefully I’ve been able to help shed some light on the overall situation & information that people have been regarding towards (っ◕‿◕)っ☆ﾟ.･｡ﾟ*