How to cancel subscription and get a refund?

I have sent two emails in which I describe the issue I have.  I went cancel the monthly subscription because I will not be using any forms for a dead period of my business.  When I cancelled, it mistakenly purchased a year long subscription.  I have asked for someone to address this situation and to provide a refund as it was done mistakenly. This has been over a month with no response.   

I have downgraded your account to free and provided a refund for the accidental year-long subscription. For further assistance, do let us know.