Stax, a startup that allows Africans to buy airtime, send and request money, and transfer funds between accounts via automated USSD codes, has raised a $2.2 million seed extension round. U.S.-based VC
<img src="http://www.techcrunchit.com/wp-content/uploads/2010/12/stax.png" class="shot2" />
Right on the heels of <a href="http://www.techcrunchit.com/2010/11/29/cloudbees-raises-4-million-from-matri