acrobat standard 2020

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After getting a new computer, i realized that i needed to upgrade my old acrobat 11 so today i purchased a license upgrade but it turns out that i do not own the 2017 equipment -- which was not stated at purchase -- so i do not know how to go about cancelling the upgrade and purchasing 2020.  Anyone able to help?  Adobe is not all that helpful in the area of customer service unfortunately.

[Tariq Dar]

Hello, 
 

You need to contact our assisted support team for cancellation. https://www.adobe.com/in/about-adobe/contact.html
For Acrobat 2020 you may also go through this: https://helpx.adobe.com/in/acrobat/faq-acrobat-2020.html

~Tariq