Rajdhani / Yamuna Power [Bses] — Regarding name change

I applied for name change on 25 february 2021( service order no. [protected]) and submitted all my documents. They told me that in the second bill the name will get changed but its 25 june today and i have received 5 bills from the date of application and the name hasn't been changed and online the status is stuck at initial cf pending since 3 and half months which is so disheartening. When i asked them what is the problem they just such your documents are verified and there is no problem but we don't know the issue why the name change is stuck. Bses rajdhani is not helping me at all.