PayPal does. And they have indeed helped me when my account was frozen.

But does anybody actually answer? In my experience a large number of companies with numbers just put you in a waiting queue that never ends. Might as well have some system to request a call, which is exactly what Stripe does.

So does Stripe. I've talked to Stripe humans over the phone for multiple accounts probably dozens of times.

Sometimes even, I send an email and they respond by phone.