i cxant purchase and its saying contact support

We are mostly users like you, not Apple employees.

Contact iTunes Support for assistance. See the Apple Support articles below for contact information.   

iTunes Support – world wide   -

Apple Support schedule phone call     -

Billings and Subscriptions   -

If necessary, use Twitter or Messages.

Apple on Twitter

Messages chat with Apple

You should contact apple support. HTTPS://getsupport.Apple.com