Deutsche Telekom AG and T-Systems International
Suppliers of Deutsche Telekom AG or T-Systems International can contact us from Monday to Wednesday between 8:00 a.m. and 4:00 p.m. CET, on Thursday and Friday from 8:00 a.m. to 12:00 p.m. CET by phone at +49 (0) 228 18 4003.
Alternatively, you can also use our PTP self-service portal. To contact us here, choose "New Support Request".
Suppliers of Magyar Telekom can contact us from Monday through Friday from 7:30 a.m. to 5:30 p.m. (Central European Time) or by e-mail.
T-Mobile Polska S.A.
Suppliers of T-Mobile Polska S.A. can contact us from Monday through Friday from 8:00 a.m. to 5:00 p.m. (Central European Time) or by e-mail.
Alternatively, you can also use our contact form.
The supplier support and all operational procurement activities and the associated billing systems are the responsibility of Deutsche Telekom Services Europe GmbH.