Stock Available but no sign of delivery

In urgent need of a new cellphone, I was recommended by a friend to try out an online store (Orange) for quick service and reasonably priced cellphones. Setting up an account and placing an order was quick and simple with a variety of payment options. Although there were a few hiccups along the way during the payment process, I found Orange's excellent staff and customer interaction sped up the process of transacting the payment(They phoned me and tried to sort the payment). However, I made the payment on 10 April 2015, which was only processed about a week later, there was no stock so understandably it could not be delivered. However. about three days ago, their main website indicated that new stock had arrived, by on my order tracking page, it still states that they are awaiting payment. It has been almost three weeks since ordering and paying for my cellphone, which I'm in urgent need of seeing as my current cellphone hardly lasts half a day, and I am still told to wait for stock to arrive even though its advertised as stock being available. Please could Orange speed up their processing, I've had a friend pay after me and still have his phone delivered.