If they can make that argument, then they do not require consent. They can collect information on the basis of Article 6 1.f: >Processing shall be lawful only

If they can make that argument, then they do not require consent. They can collect information on the basis of Article 6 1.f: >Processing shall be lawful only if and to the extent that at least one of the following applies: >(f) processing is necessary for the purposes of the legitimate interests pursued by the controller or by a third party, except where such interests are overridden by the interests or fundamental rights and freedoms of the data subject which require protection of personal data, in particular where the data subject is a child. Since they're not doing that, either they haven't read the law, or they have and don't agree with your interpretation.