I need a refund for an already cancelled Adobe Acrobat subscription

I have cancelled my Adobe Acrobat subscription last month, after being billed already once. I've gotten the email with a cancelling conformationn, saying my subscription will be cancelled on the 1st of August. I am writing this on the first of August as Adobe has again charged me for my plan that was already cancelled and that they themselves have confirmed so. I have again cancelled my subscription (receiving the same mail as a month ago), and I want a refund as soon as possible. 

Photos confirming my post: