Well, i am writing as an unlucky and lucky at the same time. I am first member who posted this upgradation news about MBl but unfortunately i didn't get upgradation. They just upgrade my connection for 2 days and then they just transferred it to 512kb again.
Actually, All the exchanges have been upgraded in whole Rawalpindi and Islamabad but my exchange i.e Fazaia Exchange hasn't upgraded because PTCL is not providing link to MBL where they can put more bandwidth and route it to customers for better service. Now after one month i called MBL CS again they told me that PTCL is still not providing them link i.e E1 and they ordered their own from foreign and it will arrive soon. After that arrival we will upgrade all the connections immediately.
That's my sad story but i don't curse MBL for this because they lead me in any difficulties.