You're eligible only for repair at this point -- they will not refund a system once that 30 days satisfaction guarantee elapses.
I bought a very expensive Dell invoice 10661555933 and my daughter experienced a lot of issues. Unfortunately she was in college and could not return it within the 30 days. We need to get a refund asap. We cannot afford a computer that does not work. She is studying 2D design. I need you to be sensible.  
I need a refund after 30 days