I have been employed for 3 1/2 years for a company and was asked to sign a new contract from FULL TIME to CASUAL and forfeit my entitlements for a higher pay rate.the new contract was not what we agreed on and I did not sign it and was told was told a new won would be drawn up.the day before payday I was handed a piece of paper(not the new contract)and told if i didn't sign it I wouldn't get paid so I signed it, but work place drug testing was made mandated and I returned a positive test to a prohibited drug and was told that I would retain employment but be stood-down without pay due to the amendments made in the new contract were by I'm paid on productivity not just attendance. I rang my boss (not my employer directly) and She confirmed I am still employed but can't come back to work until I can produce a clean drug sample.that was on 10/10/2018,To this day I have not seen nor signed the new contract therefore am i still governed under the old contract and can claim my entitlements?.