July 27th 2015 I bought an iPhone from Carphone Warehouse online on a 24 month contract with O2 , using my Barclays current account, happy and all fine.... Forward to 9th December 2015 I arrive home and there was delivery of an IPhone same model as one I bought in July , the invoice said Carphone warehouse on it so I phoned to ask why on earth they'd sent a phone , and they said they hadn't and the only phone they'd sent was the one in July 2015 ,, I left the phone unopened , a few weeks later I received an email from O2 saying Thankyou for joining O2 and my next step was to activate the phone and money would start being taken from my account on a certain date .. I phoned 02 to tell them that I had not prefers or paid for this second phone and didn't know where it had come from as CPW had said it wasn't from them . O2 said it definitely was , I made phone call after phone call to both O2 and CPW over weeks and weeks , eventually CPW said it was their error and apologised after taking the complaint higher , they said they'd arrange for phone to be collected and that would be the end of it ..... I then had demands from O2 for non payments of dd , I had to go through the whole story again .. It all went quiet until a few weeks ago I had a letter from Lowells demanding £556 !! ... I explained situation they said they'll give me 30 days to investigate ,, they sent a letter saying that I'm liable as all the details eg my address , bank details match to the O2 account, which of course they would , and that my credit rating is affected and I will pay more costs of I don't start paying... What the hell do I do ?? I can prove by my bank statements there was no second purchase fur a phone other than that where do u stand against Lowells in proving I never opened a second account ????