Crow is usually black in word
If you want to unsubscribe or delete account from mailgun , it 's not easy.
To cancel your account, you'll need to go into your account's billing page here - https://app.mailgun.com/app/account/billing/plans > click the cog symbol next to the 'upgrade button' in the Mailgun send box > click 'unsubscribe', a pop up should appear noting your account will be deleted > click 'proceed'.
you must find the fuck hidden "Unsubscribe" butten
then click Unsubscribe
even so , can't find the fuck 'proceed', this is a screenshot: