How to Get Ufone Advance Balance ULoan?

Sometime it is very hassle when you are in trouble and want to call anybody, but when you dial a number, and you listen that you don't have enough balance to complete the call. So now it very easy to get the Ufone Pakistan Advance balance of Rs.15 by Dialing *456# from Ufone Connection, the Ufone will send you to the balance to make a call and this amount will be deducted on the next time when you recharge your account.