Why is Premier Elements not available in certain countries?

Hi,

I'm new here, I tried to use Premier Elements and I'm really liking it It was easy to use compare to other that I tried. Now that I was finished with my first video and planning to purchase a license. I was prompted that it is not available in my country. Can anyone help me to get a copy of this? I'm thinking of changing my region but I'm afraid it might cause problems with my credit card's verification on payment.

Thank you,

Daryl