Poor service from my network provider. (Telkom Mobile)

On the 26th of December 2017, I experienced a disconnection from my mobile phone, I then contacted my service provider, Telkom Mobile. I was told that my sim card was disconnected because of a system error, and they will attend to it . To this date my phone it's still off. One thing they didn't forget to do, was to debit my account, while I'm not receiving any service from them.