Very limited internet penetration makes online eCommerce an option only in the DRC’s largest cities. A few companies have websites, and many independent businesses maintain a Facebook page. Some companies use the application WhatsApp to take orders. The DRC is a cash economy, and it is very rare to be able to purchase a product online and have it delivered. Telephone companies are aggressively promoting mobile money payments to facilitate commerce, and while its use in the DRC lags behind more active markets such as Kenya, more merchants are accepting mobile payments. The largest active companies are Vodacom, Airtel, and Orange and Africell. Mobile companies are regulated by the Ministry of Telecommunications and the payments are regulated by the Ministry of Finance.