The telecom operator must provide invoices free of charge.

If you refuse to receive electronic invoices, the telecom operator may not charge you any additional fees. However, the company can offer a discount to encourage the use of electronic invoicing.

Did you enter into a contract agreeing to electronic invoicing? If so, you will not receive a paper invoice and may not refuse the electronic invoice. The company should ensure clear communication, so you can give informed consent.

Do you usually receive paper invoices and then suddenly receive an electronic invoice without your consent? You have the right to challenge this.