If I get a free newegg gift card, spend it one something, then return the item, do I get the money back, or just another gift card?
How can I convert the gift card into cash?

>>33273959 (OP)
>do I get the money back, or just another gift card?
They're probably just going to give you store credit to use towards another purchase.
>How can I convert the gift card into cash?
Sell it to someone for cash.

>>33273959 (OP)
Most countries sales of goods acts have some clause that lets them refuse returns on stuff bought with store credit, or at very least only refund credit with credit
You can't. They've thought of this.