Went into Carphone warehouse for a straight upgrade from a 5C to a 6S with EE. Took about 2 hours as there was a difficulty with my number which I have had for 5 years. They assured myself and my mother, that it was all set up and I could pick it up the following week. They also assured me my 5C would work until I picked up my new phone. It was cut off for 3 days prior to receiving my new phone and when I went in to pick up the 6S they said they should of mentioned my new sim could of been put into my old phone in the meantime-for someone who is so un-technology, which I stated multiple times, this was a tad annoying. I live 30 miles from the shop so they again assured my service would appear within 1-24 hours but can sometimes be slower on weekends. So I waited 48 hours and knew something was wrong. We phoned up Carphone customer services and they advised my new sim had been processed 4 days ago so should be working fine so obviously it was a sim fault and said to go up to Carphone warehouse and get a new sim. So we drove 30 miles again. Waited in the que for them to say actually you need to go across to EE for that as it there's problem. So pretty much passing the buck. Irritated, we went across to EE and again, they gave us a new sim and said wait up to 24 hours. So again we waited and nothing. So we have phoned up again!!! And they said actually a week ago when it came up a difficulty with my number, someone deleted it!!! Beyond annoyed by the whole situation. Been 5 days without a phone, paying £50 a month which I haven't used at all yet. Wouldn't go back to Carphone warehouse, too much of 3rd party interference. No ones apologised for the inconvenience. I use my phone for my job, one being a nurse so it is vitality important for myself to carry a phone. Not impressed