hi your best bet is to go on ebay and find one of the £1 unlock services for blackberry. find one that offers a quick turnaround of maybe a few hours. All you do is send them your imei and mep number ( there are instructions on how to get these) and they calculate your code and send it to you and you input it in a special menu and your bb will be unlocked. i have used ebay for this many times and have never been disappointed.
Sent from my BlackBerry 9700
my bb history : R900,7230,8100,8120,8320,8520,8900,9000,9700