[Cauchy2022]

Is there some sort of a common pattern in the authentication and authorization problem of the digital service:

1. I can associate a phone number/email to a bunch of online services, but to unbind any specific one, I need to visit that specific website to put a request.

2. Especially for recycled phone number: it is nearly impossible for the new owner to unbind and clean the connection made by previous owner.

3. Cancel the recurring payment on your card. You either go through the service provider or call your bank/credit card issuer. However, it is usually more complicated compared to the moment when you clicked yes button.

It is super easy to start a digital service, while the other way around is not easy, and more than usual, hard as hell.