Do you use a cookie banner for asking consent for processing the personal data of your website visitors? Do not forget that your website visitors must also be able to withdraw their consent. 

Withdrawing consent must be possible at any time. It must be just as easy as giving consent. You are not allowed to require a user to pay money for this. In addition, the withdrawal of consent should not have any negative consequences for your website visitors. 

You must give your website visitors information about how they can withdraw consent before they give it. This can be achieved by including a brief explanation in the cookie banner, with a button or a link. Make sure that there is always another way in which people can easily find the place where they can withdraw their consent. 

Does it (also) concern consent for the processing of personal data by third parties? Then you also have to inform these third parties that someone has withdrawn the consent. 

Also read the Dutch DPA's standard explanation about withdrawing consent with cookie banners (in Dutch).