Can't get signal on my iPhone 4s?

I haven't had signal since yesterday it just says 'Searching… ' all the time. Also since Thursday I don't get 3G or E or whatever the connection is where I'm. Even when I had signal I couldn't get on the Internet. Should I contact Orange or is it the actual phone?:/

Talk to Orange
they may not know there's a network fault till you tell them (they should… But.)
and if they can't fix it, ask them what they are going to offer you meanwhile?
- a new SIM on O2 or Vodafone
- all your calls forwarded to that SIM until the fault is fixed
- discount on your monthly rental.
how about a PAC code and you move to O2/Vodafone

Three/orange/t-mobile share 3G networks, and t-mo/orange share 2G networks,
So if one is down all of them are down (for you)
hence O2 or Vodafone as your solution

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