Cancel subscription

I did subscribe for Adobe acrobat monthly premium subscription and now I wanted to cancel it but apple doesn't allow me to cancel it and manage Payment subscription Adobe plans doesn't have cancellation option only renewing options have. Please help me to cancel it I did contact Adobe agent through chat but they said they can't do anything on it as it's purchase from Apple Store. But the link they sent take me to the Adobe plan is App Store which doesn't have cancel option I'm trying this for from last 15days.