All of our marketing emails contain an Unsubscribe link which opt you out of receiving all emails in future. You may find it easier to go back to your original email and click on the unsubscribe link in the bottom of the email, under the Terms & Conditions.
Alternatively, you can sign in to your account to change your communication preference here.
Please note that it may take us a little time from when we receive your request for the relevant communications to stop.