(27)Uniform rules should be laid down in order to give the person advising on, or selling, the PRIIP a certain choice with regard to the medium in which the key information document is provided to retail investors, allowing for use of electronic communications where appropriate having regard to the circumstances of the transaction. However, the retail investor should be given the option to receive it on paper. In the interest of consumer access to information, the key information document should always be provided free of charge.