Hello there hazi527,
Thanks for posting here on the Apple Support Communities! This is a place where other Apple users can submit questions or respond to others to help lend a hand. Let's take a closer look as we do our best to provide some additional insight.
We understand you're having some issues making purchases. Are you just trying to make purchased from the iTunes or App Store, or are you trying to make a purchase on the Apple website?
What is the exact error message that you get? Them more detail you can provide, the better us and the rest of the community will be able to assist. If you're just having an issue with a purchase on the Apple website, you can also contact Apple's sales team: Contact Apple If necessary, select your country or region from the dropdown menu at the top of the page and click continue to have it reflect relevant information for your location.
We hope this helps get you pointed in the right direction.
Take care.