Definition: selling one thing, but delivering another thing (usually of lower value)
In the store, the dining room table looked very nice. But the table they delivered to my home was very different — the wood was different, the construction was bad, and the color was wrong. It was a classic bait and switch sale.
Don’t buy from that company. They seem very friendly, but later, you will find the service is very bad. They have a reputation for “bait and switch.”