This may sound a bit geeky but indeed it is hell easy. All you need to expertise is to get the IP address of PTCL broadband user. This can be easily done by network tracing tools while chatting to a person. Lets suppose the friend you are chatting with is using PTCL broadband, you get his ip somehow. Now what? Here comes the answer:
The PTCL so called “technicians” doesn’t bother to ask/guide the broadband users to change the default Router password which they set to “admin” with username “admin”. Just enter your friend’s IP address in your browsers and enter username “admin” & password “admin” at prompt. If you login successfully(more than 50% chances), you can do anything to your friend’s router settings. If you are hacking geek I bet you can control his PC from your fingertips. This is why PTCL says “Feel the difference”.
BTW this post was not meant for hacking but to warn you against the silly stuff by PTCL technicians, so you may not become easy target for some hacker or unwanted person. Cheers.