Sorry, we can't help

So my upgrade was due end of July. Nokia changed to Microsoft and they had no stock and was told to wait 2 months. Now when my contract is about to expire the end of this month, I am told that they don't know when they will be getting new stock. I said to Zama and her team leader that I only want a windows phone which works along with my windows laptop and my business and don't want another phone. after saying that they only have the 435 in stock. I said I don't want to down grade from my 730 and I will now have to cancel my contract and go somewhere else who has Lumia's available. She then says to me \oh ok". Really"