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ACN is committed to providing quality service to our customers.
Should you need to contact us, our Customer Service Representatives are always prepared to help you with any questions relating to ACN’s mobile service. Simply call 01803 000933 (Mon-Fri 08:00-19:00 & Sat 10:00-14:00, 0.09€/minute for calls from fixed lines).
When calling from outside of Germany with your mobile dial +49 1803 000933*
In the case of a lost or stolen SIM card, you can contact our Customer Service department on the same number outside of our opening hours to report this via our IVR system.
If you need to contact us in writing, our postal address is:
ACN Communications GmbH
Postfach 200532
47020 Duisburg
* International rates will apply.
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DE
