Burstnet Fails to refund, Internet

After looking at getting the Burstnet Internet service I was under the impression that I could sign up for a 30 day 100% money back guarantee. I paid them on 12/20/2012 and cancelled the service a few days later. I waited a week for a refund but that did not happen so I contacted support to ask for a refund.
There was no answer for a couple of days so I contacted them again and asked again. This time I received the runaround asking why and i had to fill out the correct forms. I filled out the form and asked again. See copy below. Today I was told they don't give refunds. 
The amount is only $17 but being on an old age pension the amount is important to me.
It would be no trouble at all for them to just reverse the transaction but I think they must be desperate for money.

EMAIL COPY: If you wish to cancel service, for any services ordered on your account, as per our Service Agreement, you MUST complete the Request Cancellation function which can be found in the client billing interface at https://service.burst.net/clientarea.php under "My Products & Services" and/or "My Domains". Selecting the specific service at that location, will bring you to the edit/modify screen for that service, where a Request Cancellation option appears. BurstNET does NOT accept cancellation requests via email, phone, or support ticket. Not using the service, non-payment, or moving your service elsewhere, is NOT a valid method of cancellation---nor are we aware when such is done.