Advertisement According to data from the Pakistan Telecommunication Authority (PTA), Jazz is the most complained-about telecoms provider, with 8,253 complaints. With 7,868 complaints, Telenor is the second most complained-about telecoms provider. Zong came in third with 4,527 complaints. Ufone’s varied services were the subject of 1,425 complaints. PTA received 603 complaints concerning basic telephone service ... Read more