Telkomsel’s signal is quite stable, but my experience with the MyTelkomsel app hasn’t been very smooth. The app often lags, and there are sometimes errors when recharging packages or making payments. Their customer service responds quite slowly, and sometimes I have to wait a long time to get support. In addition, the data package I bought has not been used much but has been consumed abnormally, making it hard to control and quite frustrating
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PT Telekomunikasi Selular, trading as Telkomsel, is an Indonesian wireless network provider founded in 1995 and is a subsidiary of Telkom Indonesia.