Any draft amendment envisaged by the supplier to the contractual terms and conditions shall be communicated to the consumer by post or, at the consumer’s request, by electronic means, at least one month before the envisaged date of application. In the case of electricity or gas, any plans to amend the contractual provisions relating to the arrangements for determining the price of supply, as well as the reasons, preconditions and scope of the amendment, shall be communicated in a transparent and comprehensible manner.
This communication shall be accompanied by information informing the consumer that he may terminate the contract without penalty, within a maximum period of three months from the date of receipt.
The provisions of this article do not apply to contractual changes imposed by law or regulation.