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
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