Moved to Cellnet back in 1994. I have tried and moved to many other mobile network providers over the years. I now always buy my own mobile phone and get a 12 month sim only deal 30GB data, unlimited minutes & unlimited texts for £8 per month. I always setup a spend cap, premium rate bars and limits on my account to stop any nasty surprises on my monthly bill. It would be fantastic if bars could be turned on or off in the My O2 app please. Thank you.