There's a reason that the reviews here are so bad! Have spent 5 hours in an O2 store, 4 hours online. I have been cut off 8 or 9 times and had different advice with no conclusion from at least 12 different customer service (ha!ha!) representatives.
Shocking, frustrating, difficult and terrible service. Without impunity they wash their hands of the mess they create from their 'advice' - How can anyone run a business like this and get away with it
Grrrrr!