My sis took her Nokia C3 and she is still using that phone for around year now. So, don't just believe on any one blindly check any triband phone and you are good to go. You won't be able to find an unlocked phone in cheap price or you can enjoy monthly subscriptions...
There is no such service atleast with CHC Islamabad "getting appointment". such services are only for canadian citizens and they won't discuss anything regarding your visa status or any such issue. only way out is the email / fax
normally they should have given reply by now, wait there is...
http://www.canadavisa.com/canada-immigration-discussion-board/application-status-chc-islamabad-summer-t99683.0.html;msg1664816#msg1664816
to be exact... instead of making new topics it is better to follow existing main thread.