I don't know about Braintree, but I did recently have a frontline customer support email to a consumer product company answered (incorrectly) by an LLM. I know

I don't know about Braintree, but I did recently have a frontline customer support email to a consumer product company answered (incorrectly) by an LLM. I know that it was an LLM because it said that it was in a footer below the response. It was quite annoying and I had to email the company a second time because the LLM response checked some "did we respond" box on their system.