[Guardian] Tizeti and its consumer facing brand, Nigerian ISP start-up, Wifi.com.ng has closed a Series A round of $3 million, led by 4DX Ventures with participation from existing investors Y Combinator Continuity, Lynett Capital, Social Capital, Western Technology Investment, Friále and Golden Palm Investments. This follows on from the company's Seed investment of $2.1 million in 2017.