A primitive and obtuse system that does nothing to support users. An unwanted transaction occurred with an old PayPal account debiting an ancient bank account I hold overseas. The vendor cancelled this but PayPal is charging me hundreds for the difference in exchange rate between the unwanted transaction and the refund. Immediately PayPal has sent threats of debt collectors: nice touch!One problem is that PayPal goes ahead and takes money without verification of transactions and without allowing cancellation of unwanted transactions. Another issue is how exhausting a company it is to deal with in complaint resolution. This is so difficult that I suspect they want you to give up and write off your money.It's the 21st century and PayPal is a clunky service lacking adequate customer protections. It's possible to avoid PayPal nowadays and I suggest you do so - just be sure that, unlike me, you remember to shut down your unwanted old PayPal account