Id much rather stick with my O2Online sim, never had any problems with them, even when it was BT Cellnet[apart from when they stopped the unlimited free texts but thts is beside the point] I topup £15 a month, this gives me 500 free text messages, 1MB of browsing,plus I get extras such as free minutes to landlines & mobiles a month, maybe it is because I dont use my mobile 24/7 but I would not change from o2 for all the sweets in the world or all the tea in china
