Rajdhani / Yamuna Power [Bses] — name change not done after 8 months

Address:

BSES Rajdhani Power ltd, Nehru Place New Delhi, New Delhi, Delhi, 110024

I am having BSES Rajdhani power Ltd connection CA no[protected] in my father's name late Lt Col KP Kalsy. On 06 Dec 2018 I went to Division office South Nizamuddin where I was given acknowledgement of DSS request order application no [protected]. After that I went to BSES Rajdhani office at Nehru place on 12 Dec 2018. I submitted all the documents and got acknowledgement for change of Name request no[protected].
So far the change of name has not been done. As per the direction I have called the call center 39999707 who have been promising that the name change will be done next but has not been done so far. Request of this issue can be resolved.