I'm not sure how much the tracking number would help.  I have mine and they acknowledge that my device was received at Fort Worth on December 19 but they say they can't find it and billed me $500 for a non-returned device.  It's ludicrous but it's happening!  I've been calling and having my local We Are Wireless store call on my behalf for months.  They keep promising to fix this but never do.  I stopped paying my bill until they resolve this.  Yesterday I was told it would be another 30 days before I'm credited.  I don't believe it.