Bumble purchase
I was unaware of the Humble charge of $79.99 please cancel this and credit the $79.99
Question marked as
You know that we are fellow users, we obviously can't cancel anything for you nor refund anything.
Purchases are considered final as you know, but you could try the 'report a problem' page to contact iTunes Support and see if they will refund you as a one-off : http://reportaproblem.apple.com
Or you can try contacting iTunes Support via : http://www.apple.com/support/itunes/ww
If it is a subscription I assume you've already cancelled its auto-renewal