What do you mean by boiling oil?

It means that consumers will return certain coupons to consumers when they use group oil to refuel and reach a certain consumption amount.

The main purpose of "coupon rebate" is actually "buy low and send high", which generally gives consumers a certain degree of discount.

There are also two kinds of "coupons", A coupon and B coupon.

Coupon means that the returned coupon can be used directly as cash; B coupon means that the coupon part must be used with cash. For example, "20 after 100 yuan" is the product that consumers can buy 100 yuan, which is quite favorable.