Dd2 has had a payg phone for a while but only recently started to use it now all of her friends are getting them. Yesterday she asked me to top her up and I put £5 on, I've put £10 in the past but its December and I want her to realise that money doesn't grow on trees. I'm cross to find that she's used it up already. Needless to say we've had words. I wonder if it would be better to put her on a monthly deal of £10 pr less per month but I don't want the hassle of having to check she hasn't gone over each month. Can you have a monthly allowance that just runs out once its been used up or shall we just stay with payg?