I tried everything here on my S8 and nothing worked. I tried more complicated ways I found on line and they didn't work either. I think Samsung has closed off these workarounds: e.g., the Samsung Select app doesn't appear where it used to, notifications options don't include this, etc. I worked on it for about a week on and off, no progress, irritating notification showing up again each time within minutes. I finally buckled and took the last-resort suggestion - clicked "agree" (although without checking any boxes). That worked! No more notifications. But talk about bad company treatment - I'm not going to deal with a company that sneakily requires me to opt into a mysterious account I don't understand and don't want. I've had Samsung phones for years but this is the last one. Hello, Samsung guys, you might want to think about not alienating your customer base.