In a previous answer you informed me that the Paypal method of verifying a teen account doesn't work - only credit card and mobile phone is accepted. Thank you! Now I have another question/comment that I hope you can help me with.
I registered my teen with my credit card, but am very uncomfortable with the fact that he can purchase L$ with the click of a button. Not that he is untrustworthy, but I wouldn't give any 13-year old a credit card, so why would I give him access to unlimited funds off of my card? It's too big a temptation. You really need to set up a way that parents can deposit a fixed amount of funds in their teen's account, the way that Runescape does.
Is there any way to limit spending at present?