(((Susan)))

I'm so sorry this has turned out badly for you.  Your disappointment comes through loud and clear in your post.  And you were so excited about it.....

If your former company really wants you back, perhaps you could call them on your lunch break (from a cell phone, outside the building, if at all possible.)  Just to check and make sure they received your emails.  

Don't know what else to offer, except encouragement and good vibes.....