Cannot buy software, buying issue

I tried to pay with a debit/credit card, i live in united states,Ca, LA
is it because im sending in U.S $?
It is not allowing me to pay!!!!
what can i do to solve this problem?
thank you

Elaborate, show/say what the error is.

'Boring' pid='9762' dateline='1404365160' wrote:
Elaborate, show/say what the error is.

it says , this type of credit card or debit card cannot be used for this payment, please try a different one , i tried like 3 different cards

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nvm i got it now