Dear ​@Petra26 

If you have a subscription, you cannot interrupt it, you can only cancel it with 1 month's notice if you are contract-free.

Hi ​@Petra26,

Thanks for your question. As ​@JanD already mentioned in his comment (thanks for that!), it's not possible to temporarily pause a Sim Only subscription. However, what you can do is lower your bundles to the most affordable option via My Simyo.

If you have any questions or need any help, feel free to let us know!

Greetings,
Seren

But keep in mind that you can only go back to the bundles that are available at the time that you return.

Yes, that's correct. Thanks for also mentioning that!