Refund

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.

This is a user forum, answered by Adobe Substance users not staff (although thankfully some staff do come here to answer questions).

For account enquiries, you will need to contact Adobe directly via the 'Contact us' link at the bottom of this page : https://helpx.adobe.com/uk/support.html

Note : Please do not respond to anyone contacting you via private message in this forum, purporting to be from Adobe, and asking for account details. Scammers are known to do that.

Dave