Cancellation and refunds for Adobe Acrobat plan

Dear Team 

I am being charged a heavy fee to cancel by Adobe Acrobat plan, despite my not needing it at all, and not having used it AT ALL or having any future plans to do so. Please help!

I picked up a trial product in January (Adobe Acrobat), which was for some really urgent Visa matters. Since the subscription came with monthly charges, and I was under really heavy stress, including financial stress I missed to cancel before the first monthly payment. And later, when I tried to cancel next month, I am being charged a really heavy amount to do so. 
This is a really high price in my situation to pay for, when I do not need the product at all. and infact one month payment I ended up making was also towards nothing, as I have never used the product after the first time on trial version and honestly do not even like it. 
My humble request to help cancel the plan without any charges and if possible pls revert all payments made so far. Please feel free to check my usage history, in this period, it is literally zero. 
Regards

Srishti