HM Revenue & Customs
Email “Your Tax Return Refund Overdue We noticed that your tax refund remains unpaid, if you are the rightful holder of the account and you must update your account! We also require you to create a Six Digit Phone Identification Code this will gives you access to you account over the phone any time you call Us. Your Identification Code can only be any 6 numbers you like.” etc
Don’t click on the links. Flag the email as spam and then delete.
Phone Pre-recorded messages saying in a slightly threatening way that you owe money to the tax office and either you, or your financial advisor, has to call the number provided, immediately.
Ignore the call and if you have a blocking service, block the number