I recently popped in to Carphone Warehouse to see if they got any good sim only contracts. I have been offered this £15 a month contract with very generous amount of 4G data which I was looking for. So after getting this contract from the first day got very disappointed. I would say there is hardly any internet. I work around Oxford street in London but every single day I struggled to download even dailymail page with news. I'm not even talking about trying to use internet banking or goole map that's impossible. I don't think they have a right to advertise they provide 4G they definitely mislead customers. When I finally got enough of this rubbish service and called there' brilliant' customer service I have been told they do not have 30 days cancellation period, after been reassured twice I asked my new provider to start my contract earlier. The next day I made a phone call to ID customer service to cancel their services but been told there is 30 days cancellation period. After numerous conversations and complains I been left to pay for additional month of their non existing internet services after there incompetent operator provided me with wrong information. My advise do not waste your time with ID