if that doesn't help, check your other account info to make sure it's correct, and if it is and you still have payment problems, using a browser that allows popups and cookies, contact adobe support during pst business hours by clicking here, https://helpx.adobe.com/contact.html
click contact us (= cryptic icon in the lower right)
in the chat field, type AGENT be patient, it can take quite a while to reach a human
Some regions have new banking regulations. Contact an Adobe sales agent to assist you with making your payment. If payment cannot be processed by Adobe, you may need to find an Adobe reseller in your region.