Bharat Sanchar Nigam [BSNL] — Disconnection of Broadband to landline No.[protected]

Sir
I requested your Customer Service Centr at Besant Road, Kumbakonam to remove Internet connection to our Landline No.[protected] on March 21 and my plea was recoded in your system and given Ref.No.[protected].
In this connection I contacted ur customer care service and they also confirmed that my request was registered on 3-3-21. However, revised plan is yet to be done and keep on sending bill for Rs.1890/- for the past three months. Will u kindly rectify in your system immediately and change the plan without fail. Thanks.