Národná diaľničná spoločnosť, a.s., (National Motorway Company)
Dúbravská cesta 14,
841 04 Bratislava,
Slovakia
Phone: 00421 2 32777 777
Slovak, English and German: Always available 24/7
Russian, Polish and Hungarian: Monday – Sunday between 06:00 and 22:00 CET
Email: zodpovednaosoba@ndsas.sk
Website: https://eznamka.sk/en/
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MYTO contact information (Slovak authority)