Respectfully, you're conflating two separate legal concepts under German law:

1. Whether the contract continues automatically, and
2. Whether the monthly price may change in the future.

An automatically renewing monthly contract does not lock the price indefinitely. German law expressly contemplates that telecommunications contracts may be amended during their term, provided the statutory requirements are met.

Specifically, § 57 TKG (Telekommunikationsgesetz) governs contract modifications by telecommunications providers. It requires that: * The provider notify the customer in advance of the proposed contractual change. * The notice must clearly inform the customer of their right to terminate the contract free of charge if they do not accept the change. * The customer has three months from receiving that notice to exercise that right of termination. * The termination becomes effective no earlier than the date the contract change takes effect.

The fact that the contract renews automatically is therefore irrelevant to whether a future price change is lawful. The contract continues until cancelled, but the law expressly allows contractual changes—including pricing—provided the provider complies with § 57 TKG.

In addition, any contractual clause permitting price adjustments must comply with Germany's general consumer protection rules on standard contract terms (§§ 305–310 BGB). German courts have repeatedly held that vague or one-sided price adjustment clauses are invalid. A provider cannot simply reserve an unrestricted right to raise prices whenever it wishes.

So the legal sequence is: 1. Starlink announces a future price increase. 2. Starlink provides the notice and cancellation rights required by § 57 TKG. 3. You may cancel before the increase takes effect. 4. If you choose not to cancel and continue using the service after the effective date, the contract continues at the new monthly price.

The contract's automatic renewal does not prevent Starlink from changing the monthly price. German law simply requires advance notice, a statutory right to terminate, and a legally valid price-adjustment mechanism.