How does one go about getting a refund on a 4K video that was downloaded by mistake?

[Graeme23604628wn2f]

There are two options for video, 4K and HD. The 4K version is the default selection, so I licensed this by mistake, which has taken the majority of my credits. How can rectify this? 

[Abambo · Accepted solution]

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! If the chat window fails to open, or is non-responsive, use a different device to start the interaction.
Support phone numbers may be found here: https://helpx.adobe.com/contact/phone.html. Please note that phone charges may apply.

(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)