If the negotiation is improper, make a scene.

On the whole, it is still possible.

This is a very common means to promote jewelry.

Sometimes I let you draw a lottery and get a discount.

Sometimes I give you cash coupons.

Sometimes it is said that it is free for you, but you have to pay taxes or handling fees and processing fees.

Anyway, I have to give some money in the end

Then I'll tell you, it's usually worth the money you gave me.

It's simply not worth it. It will be a little more expensive.

For reference.