You are working as a government official at the Ministry of Justice of State X, which is a candidate country for EU accession. Your department is expected to submit a draft legislative act for the transposition of Directive 2011/83/EU into national law. You are wondering whether State X can introduce or maintain the following provisions:

The consumer shall not have a right of withdrawal as regards: (a) service contracts after both parties have fully performed their obligations under the contract and if the performance of the service has begun with the consumer's prior express consent, and with the acknowledgement that he will lose his right of withdrawal once the contract has been fully performed; ...." (cf. Article 16 of Directive 2011/83/EU)