This does not affect the right of either party to terminate the contract without previous notice of a cause. A cause for Tutao is particularly given if at least one of the following situations occur: despite warning the customer culpably violates a contractual obligation (for example against 8.4 of these Terms and Conditions), despite warning the customer does not eliminate a violation of contract or of law within a reasonable period of time. A warning is not necessary if there is a violation that makes a continuation of the contract for Tutao unreasonable.</p> <p>5.3