It has to do with the speed at which you cancel. You're likely a young, tech-savvy person who cancels the web launch within one second of launching.
For the average non-techie person, it takes longer than one second to notice that something unusual is happening, and more than one second to make a decision on how to cancel it. The fastest they could possibly cancel it is 3-5 seconds, and in their view, they canceled it "instantly" - that is, they reacted as quickly as they were capable.
The difference between a 1- and 5-second response is probably the difference between no charge and $1.99.
For the average non-techie person, it takes longer than one second to notice that something unusual is happening, and more than one second to make a decision on how to cancel it. The fastest they could possibly cancel it is 3-5 seconds, and in their view, they canceled it "instantly" - that is, they reacted as quickly as they were capable.
The difference between a 1- and 5-second response is probably the difference between no charge and $1.99.