Hi @harry smith.
Welcome to the Sonos community and thanks for bringing this to our attention. I understand your situation, it can be quite confusing and alarming on our end that a customer who did not sign up for any ads still keeps on receiving ads via email or via the Sonos App. Let me help you out with that.
I would like to recommend contacting our technical support team so this situation can be handled urgently. The contact options may also be a way for Sonos to know how to send updates from our sales website but if you have decided to keep the options uncheck it should not be the case. Contacting our technical support team or our sales team @+18006802345 option 4 may have all the necessary answers for you.
I hope this helps.
Please let us know how it goes. We are always here to help.
Thanks,