How hard is it to cancel Congstar?

Congstar contracts can be cancelled via the congstar App (the primary recommended self-serve method), an online cancellation form, or by post. For mobile contracts without a minimum term the notice period is two weeks to month-end; for 24-month contracts it is one month before the contract end date; for internet/homespot products with a 24-month term it is three months before the end date. Prepaid cards carry no notice requirement and any remaining balance is refunded automatically within 6–7 business days (starter credit excluded). No refund or proration terms are explicitly published for postpaid contracts.

How to cancel Congstar

• Channels: online (self-serve), in-app, postal mail
• Official cancellation page: https://www.congstar.de/hilfe-service/mein-vertrag/kuendigen/
• Pause/freeze: not offered. No pause or service freeze option is documented on the official Congstar website.
• Account/data deletion: Congstar automatically deletes customer data at the end of the calendar year following contract termination. Customers may request earlier deletion via chat, phone hotline, or the customer contact form. GDPR data subject rights (including erasure requests) apply and can be exercised via the contact methods listed on the privacy page. https://www.congstar.de/hilfe-service/datenschutz/

Evidence

• {'title': 'Vertrag kündigen – congstar (accessed 2026-06-06)', 'url': 'https://www.congstar.de/hilfe-service/mein-vertrag/kuendigen/'}
• {'title': 'Vertragsangelegenheiten auf einen Blick – congstar (accessed 2026-06-06)', 'url': 'https://www.congstar.de/hilfe-service/vertragsangelegenheiten/'}
• Last reviewed 2026-06-06 · scope: documented public policy.

Scope & fairness

This is the Documented-Policy tier: it measures how clearly the cancellation policy is published (cited, dated facts), not the behavioural experience of cancelling (Verified-Flow audit pending). Every company is scored on the same five dimensions with the same published weights — scores cannot be bought or removed. It is opinion grounded in disclosed facts, and not legal advice.

Is this wrong? Companies can request a correction ->

Cite this. Cancel Atlas (2026). “Congstar — Cancellation Friction Index (DE).” CES-1.1. https://www.cancelatlas.com/c/congstar-de (CC BY-SA 4.0).

See Congstar in the full index -> · How we score · Open data

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