I have put a Simpati SIM card into my simple cell phone. It served my purposes by allowing me to send and receive SMS internationally and make and receive international calls. When I topped up air time with another 50 000 Idr, I have not been able to make or receive international calls or SMS .
Do I need to change settings?
this is very frustrating as I am away from South Africa for a few months and I need this form of communication