“优惠券”的英语？

剪下优惠券，并于今天把支票寄出去。Cut out the coupon and send those cheques off today.持下面的优惠券到任意一家Tecno专卖店，只需付10.99英镑。Bring the coupon below to any Tecno store and pay just £10.99.把优惠券附在信的正面。Attach the coupon to the front of your letter....