Brex is canceling customer accounts

If there's one thing that a startup needs in a bank or cash management account, it's stability. Only a month ago Brex sent a letter saying that they were changing our routing number / account number for inbound transfers, because, it seems, they changed the bank they were working with. This was a giant pain because we needed to notify all of our customers that our payment info had changed. It's embarrassing.

Same thing happened with Azlo a few years ago. They were great, until they changed the underlying bank, and then they went out of business.

I'm done with internet "banks" until I see a few years of stability. Going back to a traditional bank. Traditional banks are terrible, their fees are unreasonable, but at least they won't keep jerking me around.

What are people using for dynamic credit cards for Saas?