Controllers may not process personal data in breach of anti-discrimination laws or penalise consumers for exercising their rights by denying goods or services or changing price or quality, though they need not provide products requiring data they do not collect and may vary offers where a consumer opted out or joins a bona fide loyalty, rewards, premium features, discount or club card programme.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.