Well we have seen massive decreases in cellular prices over the years, about 50% a year. Meanwhile, the NBN keeps getting more expensive and is legislated to keep going up. In fairness, people are using more NBN data but cellular has still been going in a better direction.
This is because:
Or simply that NBN resellers have low margins on their current prices and with increased usage and speeds available, they need to increase prices. Not everything is a major political conspiracy.
https://www.aussiebroadband.com.au/blog/price-increase-annou…