Error: Signing up for new account

[realistic_master154A]

We're sorry, but a system error occurred. If you do not receive a payment confirmation email in the next few minutes, please try again or contact customer service.

[Abambo]

Sorry for your troubles! Please contact customer care for this. Adobe customer care can be contacted by beginning a secure chat session at https://helpx.adobe.com/contact.html?rghtup=autoOpen. If the chat window fails to open, or is non-responsive, use a different device to start the interaction.

(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)