How do I cancel my subscription? How can I return the N-Tester BT?

Our subscriptions are active for a period of 12 months and automatically renewed if not cancelled.


You can cancel your subscription before the expiry date. Contact our support team and we will cancel the subscription for you.


If your subscription includes the N-Tester BT, please return the device to us when your subscription ends. Please contact our support team and we will provide you with all the necessary information for returning the device.


Once everything is clarified, please send the device to this address:


Openstore24 GmbH & Co. KG (swiss mail solutions)
c/o Yara International ASA
Eichenstrasse 1A
3385 Gerersdorf

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