Can I get a refund for a subscription I no longer need?

For some years, I was an automotive writer for several magazines.  I used my Dropbox Basic to transfer photos of cars to various publishers and was quite pleased with how it worked.  But my circumstances have changed:  * Hemmings got sold and the new owners don't use freelance writers as much.  I am no longer writing for them.  * Ecklers magazines got sold and went out of business.  * I moved to a new address.  * I turned 80 last May and am no longer doing the large photo files.  Haven't for nearly a year.  I first got Dropbox at the request of Ecklers and have maintained the subscription.  In the process of moving and leaving freelance writing, I overlooked cancelling the Dropbox subscription, and until the bill showed up today, had forgotten it was still resident on my computer and the account still requires payment.  So I'm throwing myself on the mercy of the company and requesting that my subscription be cancelled and the billing charge reversed.  It's not clear how to get through to someone to explain the situation, and I keep coming up against the statement that refunds are not available.  Is there some way to get hold of someone who can accomplish this?  My situation is such that paying $200 for a software package I will never use again is a pretty significant budget hit.  Could use some advice.