Rules should be strengthened to avoid mobile users being hit by unexpected charges on premium rate texts, a regulator has said.

PhonepayPlus is the UK's regulator of premium rate services including some apps, voting on TV talent shows, directory inquiries and more. It told BBC Radio 4's You and Yours that there were "problems" with some subscription services. It is working on proposals to tighten the rules. You and Yours has heard from listeners who said they had been signed up for these services without their knowledge. One of those - Jim - found out his 12-year-old son was receiving premium rate texts which contained adult content, at a total cost of more than £340. The texts were sent weekly, and each one cost a couple of pounds.....Source