I keep getting tons of spam email, and have been on and off for a long time, from some mailing system in the US. At the bottom of this email is the small print for unsubscribing that all these particular emails have. That takes me to the page in the second screenshot. But on unsubscribing, nothing changes and I suspect it's not a single unsubscribe that gets rid of all the emails. I continuously mark as spam but they just keep coming. Drives me mad. Any suggestions?
https://i.postimg.cc/2jnkCF7P/Screenshot-20190226-162515-Email.jpg
https://i.postimg.cc/P57sWPMW/Screenshot-20190226-162534-Opera.jpg
https://i.postimg.cc/2jnkCF7P/Screenshot-20190226-162515-Email.jpg
https://i.postimg.cc/P57sWPMW/Screenshot-20190226-162534-Opera.jpg