If you are wanting or needing to give your child a cell phone, but want to be able to apply parental controls to restrict access, or even to make their access fully restricted access with them being able to call just a few numbers that you designate, then here is how to do it with T-Mobile. It is important that you understand these steps, and that you both a) don’t let Tmobile tell you that it can’t be done, and (equally important), b) don’t believe T-Mobile when they tell you that it has been done. You will need to do it – or at least check that T-Mobile has really done it – yourself. Here is how to lock down your child’s cell phone account and access, and apply full parental controls, so that they have no Internet access, and can only call and text to pre-approved numbers.