I was working as a contractor for a company through a consultant from 17th Feb 2014 till 11th Dec 2015. During this period, I decided to contract directly with the company. From 12th Dec 2015, I started working directly with the company as a contractor. But, the consultant has complained that as per Australian Employment Law, I cannot work directly with the company and I have to pay 18000 AUD to the consultant. The consultant relies on the clause in the contract (which had an end date of 11th Dec 2015) that I should not enter into any agreement without prior consent from the consultant. I am not sure on what to do and any guidance from you will be much appreciated.