The watchdog's scheme is being launched in schools and colleges
Teenagers are being warned about the dangers of pricey subscription deals, by a mobile phone watchdog.
According to PhonepayPlus, complaints about are running at 1,700 a month.
Simon Bates, from PhonepayPlus, said: "We're getting complaints every month from people having problems buying things with their phone."
They say biggest issue is with subscription deals where people think they've bought one ringtone but money is taken out every month.
Craig from Birmingham says he was losing £12 a month in extra charges.
He said: "I'm a bit angry at it, just at the fact that this particular company are taking my money for something that I only asked for once and they seem to be taking it, like, eight times a month."
Phonepay Plus is urging 4,300 secondary schools to join a scheme to raise awareness among pupils of the potential pitfalls.
This new scheme will warn teenagers to look out at the small print.