UPDATE:
@captainrio; the guy you refer to is in Mombasa, I am in Nairobi... his cost is 22k
I have found several suppliers, most charge 30k. but today I found this one
http://www.mbetsa.com/. The charge is 16k...at least that's what they advertised on uzanunua.com
As a BTW, I also landed on this great idea...
www.zetu.co.keNothing is real unless it can be named; nothing has value unless it can be sold; money is worthless unless you spend it.