> In order to ensure that consent is freely given, consent should not provide a valid legal ground for the processing of personal data in a specific case where there is a clear imbalance between the data subject and the controller, in particular where the controller is a public authority and it is therefore unlikely that consent was freely given in all the circumstances of that specific situation. Consent is presumed not to be freely given if it does not allow separate consent to be given to different personal data processing operations despite it being appropriate in the individual case, or if the performance of a contract, including the provision of a service, is dependent on the consent despite such consent not being necessary for such performance.
(My italics.) The second sentence seems clear: "consent is presumed not to be freely given" if the service could be provided without the consent. Which means consent cannot be traded in exchange for an unrelated service, like e.g. webmail.
I'm not sure what the relation between the two sentences is. Does the second one ("consent is presumed...") apply only to the cases addressed by the first, i.e. "where there is a clear imbalance"? Or are they independent?