Orange said it will stick to an earlier plan to raise prices for its superfast 4G mobile offers in February despite low-cost rival Iliads move on Tuesday to offer 4G speeds to customers without a price increase. Delphine Ernotte, who heads Oranges France business, told Reuters in an interview that there were no discussions underway with Iliad about a roaming agreement on 4G. Iliad has fired a fresh shot at Orange and rivals by saying its monthly Free Mobile subscription would remain unchanged at 19.99 euros a month including faster 4G speeds, without a long-term contract or help buying a phone. We are not afraid of an offer that is backed with no network, Ernotte said of Iliads 4G announcement.