Cleanaway seem to disagree as do State Govts here. From Cleanaway about the schemes:
https://www.cleanaway.com.au/about-us/sustainable-future/container-deposit-schemes-beverage-litter/
In particular from their page is “Container return or deposit programs are proving to be a successful way to maximise recycling and recovery” and " Container deposit schemes work
The main driver is the financial incentive, where customers can get back between five to ten cents for every container deposited. The more containers returned equals the more money you can earn. They’re also a fundraising channel, often used by schools, clubs, teams and community groups to raise money through container or cash donations.
One of the most efficient ways to recycle is to separate materials at the point of disposal. This decreases sorting costs at the Material Recovery Facility and increases quality by removing contaminants. Because container deposit schemes create a single stream for beverage container material, they promote source separated recycling and improve recycling outputs.
Widespread awareness of the scheme’s positive benefits further encourages people to recycle their containers over general waste disposal".
From Australian Geographic:
From a research paper titled “Economic incentives reduce plastic inputs to the ocean” in the abstract has this “The effectiveness of CDL at reducing the amount of beverage container litter on the coasts of two countries, Australia and the United States, was evaluated by comparing results of debris surveys in states with and without cash incentives for returned beverage containers. The proportion of containers found in coastal debris surveys in states with CDL was approximately 40% lower than in states without CDL. Additionally, CDL states had a higher ratio of lids to bottles, further demonstrating the effectiveness of the incentives in removing bottles from the waste stream”.
Further in 2016 " BehaviourWorks Australia at Monash University recently reviewed research and data from 47 examples of CDR schemes or trials around the world. This work was commissioned by, but independent of, the NSW Environment Protection Authority.
The 47 CDR schemes recovered an average of 76% of drink containers. In the United States, beverage container recovery rates for aluminium, plastic and glass in the 11 CDR states are 84%, 48% and 65% respectively, compared with 39%, 20% and 25% in non-CDR states. The figures are similar in South Australia, one of the longest-running CDR schemes in the world: 84%, 74% and 85% for cans, plastic and glass compared with national averages of 63%, 36% and 36%.
Some CDR schemes donate the refund to charity, but people are more likely to return a container for a refund. And the greater the refund, the greater the return rates. Most schemes refund 5-10c; the 11 schemes in Canadian provinces include those with refund rates as high as 40c for glass containers over 1 litre in Saskatchewan.
CDR schemes reduce litter overall. Data from seven US states show 69–83% reductions in container waste and 30–47% reductions in overall waste.
Finally, government CDR schemes are sustainable. The 40 government schemes worldwide have operated for an average of 24.8 years and all except two are still going"
From a 2017 study of bottle caps on beaches in the Netherlands “Given that the rate of return of PET bottles carrying deposits is high in the Netherlands – about 95% of the almost 700 million bottles are returned” and “The Netherlands currently has a deposit system for bottles of one litre or more that works well. At least 95% of the almost 650 million large plastic bottles are returned, mostly with the cap attached. These are primarily PET bottles and the deposit is 25 euro cents a bottle. Deposit systems positively influence the behavi-our of consumers – they encourage consumers to return plastic bottles and raise awareness that plastic has a value, including a financial one. The current deposit systems are designed to accept bottles with or without caps. They could be ad-justed so that the deposit can only be claimed if the cap is attached. This would mean that more caps are returned so that fewer caps end up in the environment. In doing so, not only the plastic bottle, but the plastic caps are given a financial value”.
For some these Container Deposit type schemes may not curb their behaviour but for others it is obviously affecting their littering.