Well, I emailed the complaints service Monday evening, still no reply today, so they are close to the limit in their 5 day response promise.
Also, the order finally arrived today, but was missing the "welcome pack". Spoke to customer service representative and when I told him it was missing he told me "not a problem mate". I said it was a problem, "mate".
My customer experience so far with O2 is dreadful. Call centre staff show little training or understanding of how to treat customers. And O2 has made it very difficult to register dissatisfaction or complain.
If anyone from O2 is monitoring this, I'd like to receive your NetPromoter survey.