eBay coupons?

[momma_michelle]

Hey had a quick question. Noticed on 1 of my listings today that buyers can use a eBay coupon and get my item for $ 10 off. I didn't tell ebay to do that and if someone uses that coupon  does it mean that I have to sell my item for the $ 10 off price.

******* $10.00 off your purchase of $25.00 or more.See conditions

Redemption code: SIACHi***********    Expires 08/03/16