Orange customers on monthly contracts have been landed with a unwanted pre-Christmas gift after the mobile operator hiked bills by 4.34 per cent. From January 8 2012, the firm is to put prices up for contract customers who signed their deals before September 2011, blaming rising inflation. It means the majority of Orange's millions of contract customers will have to pay a higher bill for the rest of their contract - which can be as long as two years - even if they signed up as recently as August.....Read more here---> Orange pay monthly customers to be hit with a 4.34% bill increase in the New Year | This is Money