payment not supporting in my region

in the future, to find the best place to post your message, use the list here, https://community.adobe.com/

p.s. i don't think the adobe website, and forums in particular, are easy to navigate, so don't spend a lot of time searching that forum list. do your best and we'll move the post (like this one has already been moved) if it helps you get responses.

<"moved from download & install">

Do you have another credit card you can use? Based on the error, Discover card is not supported in your region, India, as shown in your screenshot. 

what region?