I went over by a few weeks last time I did it. Kicked only myself (because lets be fair, this is how these things almost always work - rightly or wrongly) and went to cancel. Got an automatic message saying that because I hadn't used Prime since I went from trial membership to paid, that I would be refunded automatically. 8/10 would cancel again.
Same happened to me. Was quite annoyed with myself, and then quite pleased that they did that.
Just signed up to another trial (6 months) for free shipping on a 17 quid pair of insoles. Taking a look the video service to see if maybe it's actually worth it.
I went over by a few weeks last time I did it. Kicked only myself (because lets be fair, this is how these things almost always work - rightly or wrongly) and went to cancel. Got an automatic message saying that because I hadn't used Prime since I went from trial membership to paid, that I would be refunded automatically. 8/10 would cancel again.