Unrecognized charges & how to cancel these?

I am also having trouble cancelling. My situation is a little different, but equally infuriating. I had automatic renewal for my subscription while in grad school. My account was under my school email address because I was using Dropbox for my doctoral dissertation. After I graduated, more than a year ago, my school took away that email address. I couldn't cancel Dropbox through that email, and I've tried calling Dropbox multiple times but don't get a live person. Last week, Dropbox took 214.92 out of my bank account at the automatic renewal time. I called again and again to try to fix the situation. The automated message said I'd have to log in. I can't with that email address! I don't have access to that email account anymore! I had a free Dropbox account, so I tried to access Dropbox help through that, but I could only do the typed chat through the sales department, and they said they had no way of connecting me with billing. They did, however, help me to make a help ticket, but it's been a few days now, and I've heard NOTHING. It seems only right and fair for Dropbox to refund me the 214.92 since I haven't used it for more than a year and because I had no way of cancelling it, either through my school email or over the phone. Getting help from Dropbox has been like repeatedly running into a brick wall. Beyond frustrating. I need this money back in my bank account. I hope someone at Dropbox is reading this and will look up my tickets and help me.  There has to be a way to get my money back plus stop future automatic take outs. If you are a potential customer reading this, DO NOT sign up for automatic renewal. You'll get burned. I learned my lesson the hard way. 😞