Experienced this recently with Hello Fresh. The 'Cancel Subscription' button was so hard to find that I had to spend 10 minutes Googling it (the placement had changed over time and was always difficult to find, so a lot of the search results were no longer relevant). You had to click a button to reveal the cancellation link, and it was a tiny line of grey text on a beige background. Then, to make it better, they star…
That was my experience as well. I wanted to cancel because the interface for pausing deliveries was so painful to use that my wife and I often failed or forgot to pause weeks which were too busy to receive a delivery, thus wasting large amounts of money. After cancelling they hounded me with phone calls for weeks. We have since signed up for a competing service (Green Chef), and I have no interest in going back.
FWIW, I got terrible food poisoning from one of Green Chef's meals. Always make sure the food is still cold when you receive it, I thought it was "cold enough" but I was wrong.