I was faced with an extremely absurd situation today. I called the Ufone  customer service center to ask for MMS settings and the representative started  telling me the settings. He told me something wrong and i corrected him to which  he replied 'Sir have you previously worked at Ufone, or do you think you know  more than me' I was flabbergasted and replied  'No i was only trying to correct  you' he replied with 'sir i can block your number if you misbehave with me' i  hung up on him telling him how rudely he was talking to me, the next thing i  know, i can't make calls or receive them. and My SMS had stopped working too. I  was astonished. How can Ufone give authority to their customer service  representative to do something like that, my SIM had truly been blocked! I  couldn't even contact the customer service center again! Angrily, i called Ufone  up from my landline and told the new representative my story, he found it hard  to believe but still promised to forward my complain to the concerned  authorities. I request the PTA to look into the matter and see how cellular  companies like Ufone can strip a customer of the services they provide without  any prior notice and how representatives can misuse their authority.