While I can’t speak to every individual’s knowledge of specific beverages, there’s a strong possibility that the soft drink you’re referring to might not be widely recognized in Australia, especially if it’s a local specialty from a small Eastern European country. Australia has a diverse beverage market, including both local and international brands; however, niche products from less prominent countries might not have made a significant impact or gained popularity.

If you can provide the name of the soft drink, I might be able to give you more information regarding its presence in Australia and whether it’s well-known or available in local shops.