Refund

If you have cancelled during the first 14 days of your subscription (cancellation gets confirmed by e-mail!) you will get refunded automatically. If the cancel did not work (no e-mail), contact Adobe customer care. 

Adobe customer care can be contacted by beginning a secure chat session at https://helpx.adobe.com/contact.html?rghtup=autoOpen. Pop-up blockers need to be disabled, you need to accept cookies! If the chat window fails to open, or is non-responsive, use a different device and/or browser to start the interaction.

For support via Twitter:
https://twitter.com/AdobeCare

(see also here: https://community.adobe.com/t5/creative-cloud-services/how-to-contact-adobe-support/td-p/11875703 or here
https://community.adobe.com/t5/account-payment-plan/how-to-contact-adobe-support/td-p/11843852)

Important: Adobe does NOT contact you unsolicited by e-mail or direct message. If you get contacted by direct message from a person, claiming to be an Adobe employee, look at that profile and check if they bear the “Adobe Employee” marking under their name. Adobe support does not use Skype to give you support.
If in doubt, ask the forum.

Premium what?

Did you buy from Adobe or from Apple or the Google store?

Hello @Courtney34219921si7s 

This is a user-to-user peer support forum.  Please contact Adobe Support directly for further assistance.  Visit https://helpx.adobe.com/contact.html?rghtup=autoOpen
...and in the chat field (lower right), type AGENT