Bests & Worsts Reviews from Amazon

I would like to return this item because I just found out today that it will not work in the brand new apartment building we are moving into next week. I realize I am over the 30 day limit by 4 days but this is the first time we could try it. It does not work with the new AT&T system that has been hard-wired into the buildings. This was confirmed today by the AT&T service men onsite for the installation. Very disappointed as I thought it was made to work with AT&T systems and was one of the reasons I purchased this router. Please help.