help me
how to put phone credits on my itunes account
iPad 2, iOS 6.1.3
Not sure what you mean by 'phone credits'. If you've received credits from the iTunes store and/or redeemed a gift card onto your account then they should be accessible on your account wherever you use it (computer's iTunes, iPhone etc)
Redeeming an iTunes gift : http://support.apple.com/kb/HT1574 (gifts are country-specific and can only be redeemed onto accounts based in the country in which they were issued)