Hi,
Please evaluate follwoing idea

Discount and Coupon service on short code

Giving company's short code faculty where customer send msg and in response get voucher on mobile .Customer take this code to shop and get discount.

Benefits for vendors. mobile number of customers . know which product exactly customers are buying , easy analysis of traffic

customer benefits free service

EXAMPLE : u sms on 1411 costacoffee and you get coupon of buy 1 coffee and get 1 coffee free
take it to shop and get ur free coffee