I recently requested a number swap on 2 of my contracts. It was done incorrectly. Only 1 migrared and my other contract was disconnected! Ive rang customer service many times since Dec 1st and it was suggested that the best plan if action would be to reverse the migration. And this would take 4hrs to do....well I'm still waiting 5days later! Not happy!!!! I've been a o2 customer for over 10years!