If you bought roulette computer or system from Australia and if you think that you were scammed. You still can get money back even if you purchased it 6 years ago.

Complain to ACCC;
http://www.accc.gov.au
After few complain they will investigate matter further and they may force seller out of business.

Consumer Affairs Victoria can help you to get your money back.
People can make an application online, regardless do they live in Australia or some other country and even if they have bought the product 6 years ago.

Consumer Affairs
http://www.consumer.vic.gov.au
Helpline:
1300 55 81 81
Overseas callers
only:+61 3 8684 0735

Interpreter
Service: 131 450

Also for $70 you can apply to Small Tribunal Court. $70 is the only cost involved.
You can do it even if you are overseas or you can authorize someone from Australia.

In some occasions you seller may even let you sign contract.
In most cases such contracts are invalid and designed only to protect seller.

How to recognize unfair contract terms...

Read more...