The company specialized in mobile transactions, VTU Colombia, through the brand Dddedo, offers an electronic recharge system through the cellular phone, which speeds up the process of traditional credit recharging system by only informing the amount that the user wants. The service allows users to electronically charge minutes, doing away with prepaid cards. Distributors will no longer buy a lot of cards, but only an amount in minutes and when a customer comes to purchase credit for their cellular phone, the seller will transfer the balance in minutes through a text message. Initially it will operate in 870 stores throughout Bogotá. The system reduces the cost of printing the plastic and annuls the problem of stock in stores