Service Support Center
Contact our Service Support Center for all questions about CAx Supplier Network (CSN), European Network Exchange (ENX), Trainings and Information Security.
operational services GmbH & Co. KG
Rudolf-Ehrlich-Str. 7
D-08058 Zwickau
GERMANY
Telephone:
+49 375 6061 9904 (international)
0800 5 877 877 (only in Germany)
Fax: +49 391 580 130 760
E-Mail: csn.service@o-s.de
For Czech and Slovakian language support please contact:
T-Mobile Czech Republic a.s.
+420 739 242 027
email: kvs@t-mobile.cz and connect@t-mobile.cz