With Celcom Africa the only cost you'll incur is that of purchasing bulk SMS units. In fact, it's like we're giving you a free phone, but in order for you to use it, you'll need to load it up with some airtime. We ensure that buying bulk sms credits is simple. Choose from the payment options on your left to find the one that best suits you. Your privacy & security comes first. There is a minimum requirement of 500 credits for all bulk SMS messages bought.