wrong email during payment

https://helpx.adobe.com/manage-account/using/change-email-address.html

https://helpx.adobe.com/sign/kb/how-to-change-the-email-address-associated-with-your-Adobe-ID.html#:~:text=Steps%201%20Sign%20in%20with%20your%20AdobeID%20using,if%20you%20like%29.%204%20Click%20Save%20my%20changes.

if the above links fail to help, contact adobe support using twitter/x.  there are 2 ways to contact adobe; chat and twitter (now x):

chat:
use a browser that allows popups and cookies
and click here, https://helpx.adobe.com/contact.html?rghtup=autoOpen
in the chat field (lower right), type AGENT
be patient, it can take quite a while to reach a human.

twitter/x:
tweet @AdobeCare

p.s. if you're contacted by anyone (via email or private message), it's much more likely to be a scammer than an adobe representative.