The ordering process was fine, the price was good and the item was delivered promptly. However I didn't receive the pre-paid SIM card that I paid for (it turns out O2 no longer offer the SIM that E2Save was selling) and speaking to E2Save's customer service wasn't much help (wait in a queue, then get brushed off and passed over to an O2 queue, and then the line just hung up), and their email customer service was even worse, taking days to get a response and I'm still waiting on the follow-up. In this time though I was able to use O2's live-chat and they have sorted out the SIM card and credited me the money I lost, so in the end I got what I paid for, it just wasn't as smooth sailing as it should have been.