A big purchase
“That's included” is easy to say and expensive to assume.
The quote is on your phone. The salesperson is talking about a different configuration.
The situation
A car, a kitchen, windows, a boiler. The person selling it names a warranty, an option and a delivery time — and you have the written quote, but not open, not indexed, not in your head.
How the session is set up
The quote and the specification you were sent, attached to the session.


Session instruction
Check every claim about equipment, warranty and delivery against the attached quote. Mark each one confirmed, contradicted or not mentioned there.
During the call


Which promises are actually in writing — before you sign, not after delivery.
Every part of this is described in Start a session and The conversation window.