See the easiest way of knowing your Bank Verification Number, BVN by dialing a short code on your phone.
To know your BVN, dial *565*0# on the GSM line you used in registering at the bank for the BVN registration and wait for few seconds, your BVN will appear.
This is real and not a scam. Kindly pass the info to let others know. As we all know, that the BVN registration will close on the 31st of October, 2015 and there will be no further extention.