Escalation for Bad Service

Good day Cellc,

Subject: Escalation for Bad Service reference number ***

I am writing to escalate an issue I encountered with your call centre. I spoke with a consultant named Nakedi, who refused to provide her surname and advised Team Leaders already knocked off. She informed me that there seems to be an issue with Cellc changing client bank details telephonically.

Could you please provide guidance on how I can proceed with updating my bank details? Your assistance in resolving this matter would be greatly appreciated.

Thank you.

Regards, David Tsukulu