As a business person, you’d put a customer through the wringer for one missed payment due to communication problems? I hope you have a monopoly in whatever market you serve, because otherwise that’s a great way to lose all of your customers.
Anyway, we’re back to making it the responsibility of the customer with a thousand more important things to think about, rather than of the business that’s dedicated to the stuff.
And if you think it should be that way, great. But it’s obvious to me that it is that way because of the power imbalance, not because it’s right.