D-Link DIR-615 Wireless Router Review

I bought a D-Link Wireless Router and a D-Link wireless USB adapter for my new laptop.  The words printed on the box said easy and quick hook up.  Well unless I am a complete idiot it was not easy or even quick.  I bought this from the Office Depot.  I tried hooking this up for about a month and then called the eight hundred phone number listed in the pamphlet.  I was told the router was not working properly and to take it back and replace it with another one.  The next day I took it back to Office Depot and they would not take it back because it had been over fourteen days.  I even had my receipt.  It only cost $39.99 but to me thats alot of money.  So I had a router that did not work and Office Depot made me buy another one at $39.99, so all together this wireless router cost me almost $80!!! So what am I just beat for the first $39.99?  I guess so because Office Depot did nothing buy sell me another one at $39.99.  I find this very not business like and am very upset.  I do not know what to do about the situation either.   I got the second one hooked up no problem and am happy with it but Customer Service for Office Depot sucks.