Tamil Nadu Electricity Board [TNEB] — some body raised a complaint with my registered eb service connection number

Address:

Indian Enclave, Indian colony, Keelkattalai, Chennai, 600117

Hello sir,

I have received a mail from tneb net on 29th jan 2020.in the mail, some body raised a complaint with my registered service connection number.
Actually i am the owner of the house and i am promptly pay all the bills in time. Simultaneously i have checked with tneb login, i am not able get inside with my login id.
The system is show "invalid customer" error. I also checked with my connection validity, it is showing with "live" status.

Could any one help me to get clarity with the following questions...

1) i am the legal owner for the service connection # [protected] (Balaji anadha padmanabhan), other than me, no other person raise complaint against my service connection.
Then why i am getting this mail...?

2) my login id and password is correct. Since the system is not accepting my credentials and it is showing invalid customer number. If my service connection is active status,
Then why the system showing as invalid customer number...?

If you are giving explanation for my queries, it would be a great help to me to get clarified with my issues.

Thank you
V. Umashankar