How do I get a supervisor to call me I was hung up on by an agent names al

My product is faulty and you owe me a refund I'm paying a 2 year loan and the warranty was only 1 year? My product fails immediately after warranty expires proving you sold me a inferior product I want it repaired under warranty or I will refuse to pay for another xbox product ever again . You are losing your customer loyalty and going to lose the player base you need to support the Xbox community

:)