Well in past we had very much less choices and we always had to rely upon the customer support service of the telecom operators. But now things are lot much different, now we have the proper check and balance mechanism, if you can not getting the full value from the services you acquire, you can complain about it with Pakistan Telecommunication Authority(PTA).
PTA gets thousands of complains every week, they respond to all of them and make sure the person complaining gets the satisfactory services after the complain is processed and closed. You can register the complains online using their complain forms as well as they offer some phone numbers which can be called in order to get your complaints registered.
To get your complaint registered online use this complaint form or you can call on +92-51-9221444 or fax on +92-51-2878139. These numbers are of headquarters, you can also get the zonal numbers if required from PTA website, otherwise these must be enough to get your complains registered against any organization related to Telecom.
PTA toll free complaint number for all over Pakistan is 0800-55055, you can complain about any thing related on this number. Also you can make use of following email addresses and numbers of PTA.
PTA Headquarters: email@example.com (Tel: +92-51-9225325)
Rawalpindi: firstname.lastname@example.org (Tel: +92-51-5766402)
Lahore: email@example.com (Tel: +92-42-6665022)
Karachi: firstname.lastname@example.org (Tel: +92-21-5680101)
Peshawar: email@example.com (Tel: +92-91-9217279)
Quetta: firstname.lastname@example.org (Tel: +92-81-2829476)
For contact information about more zonal offices you can visit pta.gov.pk. However for you complain you normally don’t have to dig down to zonal office contact info, complaining to headquarter email address or phone number also works equally well. If you have got any piece of info in this regard which can be helpful for others, feel free to share via comments.