Orange has launched "Bright Top Ups" for its pay as you go customers which means every time a customer tops up their mobile phone credit by any amount, they have a one in three chance to instantly win a prize.

Unlike O2's code-based top-up "Surprises", launched back in November (the surprise, according to the 100 plus comments we've had from readers, is that it doesn't work that well), Orange's offering will instantly send a text to customers letting them know if they've won.

As well as text bundles and extra credit, Orange prizes will include thousands of non-mobile prizes such as European breaks, weekends away in the UK, tickets to Glastonbury, portable BBQs, beach towels, frisbees, juggling balls, and giant beach balls.