My son is 13. Gave him a choice whether I took his phone or sim off him at 10.30, he volunteered his sim after a couple of days soooo readily, i thought, hmmm hang on, this is to easy, low and behold he stuck another sim in it! blimey! im heart sore! I went into his bedroom and screeeamed at him you f.... ing little liar! how dare you! not a smart move i suppose but the first time I have caught him in a lie! Is this how its going to be for the next 5 years????