The website IMDb doesn't warn you when the annual subscription is about to get renewed, which is pretty shady. I got billed very recently for an ANNUAL subscription. I don't see why not imdb cannot refund me. Nothing holds it from it.
About two years ago I had the same problem with Mubi.com, which refunded me right away without any problems.
Being active, visiting IMDb doesn't necessarily mean that I want to pat another full year of subscription and I was expecting to be warned before cancelling.
I need this refund and I was only able to see the billing when my card statement arrived. Nothing was told, no warn.
IMDb SHOULD refund people who are not warned by it and I'm willing to take this further and get legal assistance if needed.