For registered participants: CS OTE Portal Sandbox CZ
30.04.2020 13:20:00

Change of telephone numbers

In order to improve the quality of our services and to ensure a more reliable telephone connection, the market operator will switch to new telephone numbers from May 1, 2020. Current contacts are available at

Please use only these telephone numbers to communicate with us. The original phone numbers will be available only until June 30, 2020.