I was charged full price and need my funds returned back. Can Adobe please confirm a refund was issued back to my account?

Check out the refund policy at https://helpx.adobe.com/account/individual/terms-policies-and-regulations/adobe-subscription-terms.html

So you cancel the plan, if you are eligible for refund, you will get it automatically in about 14 days

you have to cancel your trial to get a refund.

cancel subscription, https://helpx.adobe.com/account/individual/subscriptions-and-plans/renewals-and-cancellations/cancel-adobe-subscription.html

understanding cancellation 

fees, https://helpx.adobe.com/uk/manage-account/using/creative-cloud-subscription-terms.html#cancel