I‘m afraid that a discount of 3% is not enough.
*Well, the discount can be increased if you place a substantial order.
* Well, the discount can be increased if a substantial quantity is ordered.
* What do you mean by a substantial order?
* What’s your idea of a substantial order?
* If you increase your order to 500 dozen, we’ll grant you a 4% discount.
* Well give you a 5% discount on the order of 500 dozen.
500 dozen? That’s really a large order! Is it possible for you to increase the discount a bit?
I’m very sorry to say that make allow-this is the best we can do. Please make allowance for our difficulties.