Tried to sign up for free trial, took my money anyway and now I can't unsubscribe.

Earlier today, I tried to install the free trial of Adobe Acrobat so that I could quickly edit a pdf I was having trouble with. I went to get the free trial and it asked me for my payment information, as a lot of things tend to for free trials, but underneath the payment window is said "First 7 days free" so I wasn't worried. I entered in all my information, clicked confirm, and instead of giving me a free trial, it actually took my money, and apparently its going to renew this subscription in a month.

I didn't want to pay 30$ for this, I needed to edit a single file to adjust it's page numbers, and now it's not letting me cancel and get my money back, any time I go to manage my plan, it just takes me to a white page that doesn't load anything.

I've waited a very long time for it to load, and I have fairly powerful internet, and am not having problems with anything else, so I dont think it's a problem on my end. I just want this subscription cancelled and my money back, does anyone know how to deal with this problem?