Dark patterns aren't just for cancellations. A couple years back, a friend bought me a one year gift subscription for Britbox[0]. When I tried to activate the gift subscription, the site refused to allow me to do so unless I provided them with a credit card number. Which, from a practical standpoint, makes no sense as it was a gift . I wasn't going to provide these wankers with my credit card number[0], so I then had…
It was great for stuff like this because if they pulled this kind of nonsense, you could just walk away and they were left with a unique card number that didn't matter worth anything. Most of the time, you might only have the number active for a few weeks, so if they tried to charge that number say, a year later, it was obvious they were trying to use a number you had intentionally made limited in time.
This service was discontinued and I really miss it a lot.
I still don't know that I'd go into a contract with any company that behaves this way (newspapers included) but it provided a layer of insurance in case you missed something.