From my experience you can easily add funds using prepaid codes directly from a smartphone, which makes the whole process really quick and straightforward. I recently saw a clear explanation on https://www.nicolascaife.com/ about how these kinds of voucher systems work and why many people choose them for online payments. You just enter the code and the balance is updated instantly, without needing to share banking details or go through complicated payment procedures. That’s why this option has become quite popular among users who value privacy and simplicity.