Vishal Mega Mart — About billing staff

Address:

Vishal mega Mart,lal kuan near pul praladhpur pin -110044

One staff mr.pranav Kumar billing staff is denied for billing.and give just multiple excuse machine faulty, time over.after some time he billing for other customer.
My complain is billing counter closed at 2130 hrs.then entry will also closed.if once counter closes then close.why he restart billing.
8 billing counter is available.why not all are available for billing.staff are just chit chatting to one other.billing time is more than purchasing time now a day in your branch..
Plz do needful action.it is benifit for your branch and customer also.THANKFUL