Amazon Prime is definitely hard to cancel, but I had a pleasant customer support experience at least.
A few years ago I came to realise I had left my monthly Prime subscription active for a whole year when I thought I had cancelled it.
Once I realised, I cancelled it and asked Amazon support if I could possibly get a refund; they granted it the next day after confirming I hadn't bought anything or watched Prime Video in that time.
I'm very careful to make sure I cancel Prime when I'm done with it now. It bothers me that they don't send an email receipt or anything every time you're billed.
A few years ago I came to realise I had left my monthly Prime subscription active for a whole year when I thought I had cancelled it.
Once I realised, I cancelled it and asked Amazon support if I could possibly get a refund; they granted it the next day after confirming I hadn't bought anything or watched Prime Video in that time.
I'm very careful to make sure I cancel Prime when I'm done with it now. It bothers me that they don't send an email receipt or anything every time you're billed.