Unwanted messages from VANQUIS

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This credit card firm have got my details and keep bombarding me with messages on my iphone. Mostly it is emails
how do I block them?
I have tried the Sweep button on my laptop but they have got round that too.

I get many emails all junk from them have never given my details....have been bombarded with Greenpeace also today

My DH has been getting a lot of junk as well some of which has been Grenpeace. I've blocked some of the emails but lots are coming from addresses that don't exist. I'm running out of ideas of what to do with them.

Sorry no helpful advice but intrigued that somebody else is getting them as well

Interested to hear that the addresses do not exist. Same happened here.
I have now opened one email from Vanquis and clicked on the unsubscribe button. It may or may not work.
I also keep getting one about paying for my funeral, which is a bit strange.