Paid to come out of my contract, so that I could get a new phone. Ordered a Samsung. Approx. five minutes after ordering I spotted a Huwawei that would suit me better. Phoned O2 immediately to cancel the Samsung. Was advised that was fine, and would take 24 hours to appear on my account, at which point I could order the new phone. I received text updates to say that my new phone (the Samsung) would be dispatched the following day. Called again. Spoke to a different colleague. Asked if it was definitely cancelled, which he confirmed. I asked to confirm that the phone would NOT be sent out, which was also confirmed. The following day I received a text message from DPD saying that my phone would be delivered. Called O2 again, who said that it WILL be delivered, but to simply refuse delivery. DPD driver arrived with the new phone. Refused to accept delivery. Called the following day, saying that I had refused delivery, and asked when I could order the new (Huwawei) phone. They said that they need to have the Samsung delivered back to them, before they're able to process this. One week later and there is still no word back from O2. Have checked my account, and it's still not been updated. Absolutely terrible service!.