27Such a conclusion cannot be invalidated by the argument, put forward in particular by Allianz, that the principle of legal certainty could require a provision such as that at issue in the main proceedings. The Court has already held, in that regard, that if a consumer was not aware of the existence of the right of cancellation, he would not be able to exercise that right and that, therefore, reasons of legal certainty could not justify a restriction of the period during which the right of cancellation in accordance with Directive 85/577 could be exercised, in so far as that entailed a limitation of the rights expressly conferred on consumers in order to protect them against the risks arising from the fact that credit institutions had chosen to enter into agreements away from their business premises (Case C-481/99 Heininger [2001] ECR I-9945, paragraphs 45 and 47).
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