international calling service

XCELLITY.COM LOCATED IN NEW YORK

I PURCHASED A SERVICE SO I CAN MAKE INTERNATIONAL CALLS BUT THE ACCESS CODE I WAS GIVEN WAS ALWAYS BUSY AND COULDN'T GET THROUGH. I CALLED THEIR CUSTOMER SERVICE AT 877 XCELLITY BUT NEVER SPOKE TO A LIVE PERSON AND MY MESSAGES I LEFT WERE NEVER RETURNED. ALSO THE CUSTOMER SERVICE EMAIL THEY GAVE, MY MESSAGES GOT RETURNED. I NEED A REFUND BUT I'VE GOTTEN NOWHERE.

THANKS