First, the rule is to not complain about downvotes. Particularly challenging folks to downvote you to oblivion. Second, while the title mentions GDPR, it also

First, the rule is to not complain about downvotes. Particularly challenging folks to downvote you to oblivion. Second, while the title mentions GDPR, it also mentions banking, this cannot mean providing an advertising company with unaudited, uncontrolled access to do whatever it likes, you seem to be excluding these cases as you repeat your argument about GDPR. Likely you are being downvoted as your posts aren't fitting with the guidelines. Oh, and your comment I don't know if you read it or not, is a reply to a comment made by the author. Please stop.