I have sent an unlock code form 3 times and I keep getting the same automated response saying I haven't filled it out right or it doesn't match my registration details. I was given this phone by my dad when he got an upgrade. The email does not specify what the issue is so I would appreciate if someone could help me. I have moved to Australia and I have paid 30 dollars for this month but I can't use it because of this issue. Please resolve this for me.