Can I deauthorize devices from iTunes using my ipad?

I only have an ipad and iPhone. I DO NOT have access to a computer (stolen).   I am trying to deauthorize iTunes on all my former devices using my ipad.

 

All  the information I'm finding talks about using your computer to deauthorize. This is not an option for me.

 

Is there no way to do this via ipad or iPhone??

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