I signed up to try Adobe Pro free trial and you took my money without my permission. Now I want to cancel my subscription and you want $111.00 AUD. This is disgusting and I want this fee refunded.

Free trials for 7 days, after which you are billed monthly for ongoing service. 

Did you not understand that your credit card would be billed after your 7-day trial period ended?

Log-in to your account below.

https://account.adobe.com/plans

You may only get a refund if you cancel and are charged during the first 14 days of starting a trial
After 14 days the trial becomes a subscription and there is no refund
See https://helpx.adobe.com/manage-account/using/creative-cloud-subscription-terms.html
 

To contact support see the CORRECT ANSWER at this link
https://community.adobe.com/questions-6/contacting-a-real-person-at-adobe-433913