Ask how man-hours-saved was calculated: whether it assumes every deflected conversation would otherwise have been a full-length call, and at what average handle time. That assumption drives both the hours and the 13x ROI, and it rarely holds uniformly. Then examine query concentration in your own desk, because deflection economics depend on a few question types dominating volume; a long tail of varied queries automates poorly.
Confirm what the 70 percent applies to. It is described as top call-driving queries, not all contacts, so scope it before setting expectations. Check whether your bot needs to integrate with order, account or CRM systems to answer usefully, since a bot that cannot look up real data just routes to a human anyway. Verify template and session-message rules, escalation paths, and confirm applicable rules, consent, retention and escalation design with qualified counsel or compliance owners for any account data surfaced in chat.