No stock/ broken promises

I spoke to you on Tuesday regarding a Blue Samsung Galaxy S6 (no stock). On Wednesday someone called me from Cellc C and said they had a blue S6 in stock and it could be delivered on Friday.<br> <br> I double checked with this woman and told her I had been told there was no stock. She promised me there was stock so I upgraded.<br> <br> Now I have just called to check the status of what time my phone will be delivered today and have been told, there is no stock and they have marked me down to get a black phone and they don't know when I will get it.<br> <br> I am extremely unhappy now. Please confirm what is going on with my delivery or you are going to lose me as a customer.