Contact ISZO
Invoicing and payments
fakturacie@okte.sk
Contractual relations
info@okte.sk
+421 916 43 2633
+421 916 43 2655
Daily operations
+421 916 43 2635
+421 916 43 2644
+421 916 43 2672
+421 916 43 2675
Evaluation of imbalances and differences
+421 916 43 2647
+421 916 43 2634
Requests for renewal of certificates and creation/change of user accounts
certificate@okte.sk
Technical support
support.is@sfera.sk
+421 917 400 600