A salesperson who says that you must buy a sale item today because the price is going up tomorrow is practicing:

Question

Quizplus · Accepted Answer

The salesperson is using the "hard sell" technique, which involves putting pressure on the customer to make a purchase right away through aggressive and persistent sales tactics. They are creating a sense of urgency by suggesting that the price will go up tomorrow, which may not necessarily be true.

A Salesperson Who Says That You Must Buy a Sale