How much is an international roaming card for sending messages to China in South Africa?

Mobile International, Hong Kong, Macao and Taiwan roaming South Africa calls Chinese mainland or the roaming place where the called or calling party roams for 2.99 yuan minutes, sends short messages to Chinese mainland for 0.99 yuan, and sends data to other countries and regions 1.89 yuan. The traffic in 6 yuan is 3 trillion yuan/day, and the daily peak traffic is 50 trillion yuan, and the daily peak fee is 60 yuan.