MOSCOW, August 15 (RAPSI) – One of the Russian largest mobile operators, MegaFon, has filed a lawsuit against the Federal Antimonopoly Service (FAS) with the Moscow Commercial Court, according to commercial courts’ database.

In late July, the watchdog opened antimonopoly cases against MTS, MegaFon, VimpelCom (Beeline brand) and T2 Mobile (Tele2 brand) over alleged violation of competition legislation. The cases will be considered on September 26, 28 and 29.

Earlier, the watchdog announced that actions of MTS, MegaFon, VimpelCom (Beeline brand) and T2 Mobile (Tele2 brand) may have violated the competition law by setting different prices for mobile phone service in customer’s home region and in roaming on the territory of Russia.

The watchdog issued warnings to the mobile operators prompting them to eliminate unreasonable difference in prices.

On Monday, MegaFon announced that it plans to file a claim against FAS to declare the watchdog’s order illegal.