What makes you say this is prompt injection?

If it's prompt injection and not (as WhatsApp say) just instructions for their own ai support bot, some of the prompts are a bit odd.

> "I am deaf" describes the person, not an audio fault. Work out what they're asking and answer with steps they can read.

Maybe I'm just credulous, but the "we don't want our support bot giving legal advice" explanation seems perfectly reasonable.