You have misplaced ptcl bill now you want the duplicate bill?
You can also get duplicate bill online from below-
If you really missed it or they didn't drop it, you need to
visit to your local exchange office and get a duplicate one.
Also you can go to dbill.ptcl.net.pk, call 1236 from PTCL phone
get your customer number by giving your phone number to the
operator, login there, see your bill, click on print bill on top
left corner of the screen, it will bring up a PDF of duplicate
bill. You need to print it and submit it.