Extreme Irate customer

Telkom Mobile Team Leader Cele Lungi was explained my dissatisfaction in service delivery and to blacklist device, my daughter was ****** 19/06/2018 with a telkom mobile simcard used in device more than a year, -Telkom sms -We cannot blacklist/block device contact MTN. Team Leader was not help full, in the Call Center Industry me the victim and client in this situation expected more. MTN was contacted and confirmed the IMEI . provided is not listed on system as Telkom mobile simcard was active at time of *******. My Serious complaint service provider come with logistics my daughter`s device in hands of ********* i am not able to blacklist device using the above mediums and not able to report to police station without reference or case number from service provider, (hope never to liaise with Telkom Team Leader . Telkom Senior Management capacity please resolve with urgency!!