"If the fans have questions regarding the transport complex's work during the 2018 FIFA Wold Cup they can contact our call center 24/7," Pronin said.

According to Pronin, any fan can dial 3210 from a Russian number or 8 (495) 539-54-54 from any number.

The official added that the call center will operate in six languages - Russian, English, German, French, Spanish and Chinese from June 7 to July 22.

The 2018 FIFA World Cup will be held between June 14 and July 15 at 12 stadiums across 11 Russian cities.