Telkom service providers

How can telkom suspend your account after they deducted the full amount what was owed and after we spoke to the call center and had the account reinstated and then they suspended the account for a second time . Service was unacceptable the opperator to whom we spoke to could not give a reasonable answer she refused to let us speak to a manager or supervisor on duty deu to her not having a contact number for them. The operator then proceeded to to put the phone down in my ear . Advice needed for course of action as my phone is the only form of communication for my work place as i am on standby and can not afford to miss a call from work