I have had problems with this company too. I was rung up as you were near the end of my existing contract with orange - talking of renewing contract with them, deals, cashback, so I decided to take out a new contract, again with orange.
However, one of my terms was that I wanted to keep the SAME number that I already had. I mentioned this again and again and was told again and again that I would be able to keep the same number, that the contract i had now would be finished early and the number transferred over to the new contract.
Then the new phone arrived, with a completely new sim card with a different number and was told when I rung up orange that keeping the same number would be impossible, as they can't port numbers within the company. I rang Phones 4 U on the 10th of November, they told me they had turned it into an 'escalation' and I would be rung back by a manager within 7-10 days. This call never came.
I rang them again on the 22nd, they told me they had made a reminder, that I would get a call back. No call back.
I rang again today, and was told a load of *** about how I had never asked if i could keep the same number (which I had, multiple times), and that they had listened to the call of the sale whilst they had me on hold for an insane amount of time.
The call of the sale was over 20 minutes long, so they couldn't possibly have listened to it all as I had been on the phone for only 20 minutes, and had spent 10 minutes of that explaining the situation again.
From all the other complaints a simple internet search pulls up, it seems that this godawful company constantly pull the wool over their customers eyes, fob them off with excuses, and lie to them. Once you enter into a contract with them there is absolutely no way to resolve any problems.