It's so telling that Adobe reacts in this way, when they present their terms of conditions in such a dark-pattern manner. It's like they know what they're doing is super dodgy, but want to toss whatever reputation they have left out of the window, for the sum of just a few bucks a month. It's revolting.
I know those 4 letters got me a full refund the next day when brought to the attention of the parent company after failing to deal with a local franchise owner. Before hand having followed the ACCC guidelines trying to get the order back on track (and creating the paper trail to ensure there was no doubt I was in the right).
I've only had to do this once and it was a fairly simple process. Lawyers are not allowed. Just point to the specific consumer guarantee being breached, provide documentary evidence, and show up.