Weak signal with EE can I cancel upgrade within 7 days?

My old phone was broken so now I've done an early upgrade through Phones4U to an IPhone 5 on saturday, with a 24 month contract. Now I have realised that the signal is very weak (1 bar, 2 at most), and I'm seriously considering returning the phone, as the contract is very expensive. Would this be because of the phone or the carrier? And I was wondering if I could cancel the contract as it has only been 3 days? Does anyone know what Phones4U's policy is for returning upgrades? I would be extremely grateful if anyone can answer these questions as soon as possible, because if I can return it, I would need to do so VERY soon.

Week Signal might be due to career please check with your service provider. For Return policy please go through their terms and conditions policy page. Here is the link

phones4u.co.uk/help/help_terms.asp

  • Within an iphone app can you delete a user permanently? When making an iphone app, and you need to ban a user, is it possible to ban them permanently? Like via their iPhone ID or something like that? There's a person that is making an app and one of his problems is that he can't really ban anyone, he says, because they can easily make a new account.
  • When should i be expecting my order? Do i have to wait a total 4-5 days being that Saturday and Sunday aren't business days? I ordered an Iphone 6s plus and an Iphone 7 plus from sprint on Friday (today s Sunday). The website said that it was a 2-3 business day shipment/delivery time frame… As you know Saturday and Sunday aren t business days. When should i be expecting my phones? Will i get the between Tuesday and Thursday?
  • My iPhone suddenly has weak Wi-Fi signal strength? This has been going on for about a week now and it happened suddenly. My 3GS suddenly has terrible Wi-Fi signal strength, meaning that if I'm in my room now, I can't get Wi-Fi while sitting on my bed. I have to be on the same floor basically as my router. Is there something I can do? Is there dust blocking something? Tips please?
  • My iphone broke, now I need to send it back within 5 days. Will they see my pictures? Okay so my phone broke completely out of nowhere. I have insurance so Verizon Wireless sent me a new phone, on the condition I send the old one back. Now I have a lot of dirty pictures of my current boyfriend and I and I'm terrified they might get a hold of them. Can someone please reassure me that they can't reach my pictures? It was updated to iOS7 so it had a password lock.