Auto renewal refund

Norton AP sent me warnings on my old laptop that I was no longer protected and needed to renew.  I did not renew because I was buying a new laptop.  In March I looked at the statement of a credit card that I no longer use but periodically check to make sure there aren't any unappand found that Norton had auto renewed the protection on my old laptop.  I called them and they said that they could cancel but could not refund because I was past the 60-day refund period.  I told them that I should have been notified and they said that they sent me an email.  I searched my email box and there was not an email so I searched my spam box and there it was in spam.  I called them back and told them that this is not acceptable.  They should be sending a letter out for renewals because they know that many of their messages get sent to spam.  The customer service rep said that she cannot issue a refund so I requested to speak to a supervisor.  She said that the supervisor was just going to tell me the same thing; no refund.  I told her that I would stay on the phone all day and work my way up the chain of command.  She put me on hold and returned a short time later stating that she had been given permission to issue a prorated refund which I hesitantly accepted.  I appreciate the refund but I am still disturbed by this practice.  Many companies do auto-renewals and it's just not working for customers and it can't be working for companies because all they do is make customers angry and lose future business.