I to made a mistake by signing up I texted STOP to there number but it didn't work and I found out every time they send there advertisement it took £1.50 from my pay as you go balance and they send you advertisement allot "Unlimited texts this week at http://www.txtparty.co.uk. Remember its prepaid so start texting now!" I noticed as soon as I receive the message it took £1.50 off .
I looked for another way to stop this I have found Helpline: 0845 225 2244 you enter your mobile then choose option 1 to cancel all services.
Cross my fingers that resolves the problem.
