"I thought maybe a friend or my boyfriend had left it as a prank, but after ruling that out, I was very scared," the woman told Newsweek.

Cali, 22, thought her boyfriend or friend was playing a trick on her when she first spotted the odd letter outside her ... This is a note that was left on my doorstep two years ago,' she wrote.

Millions of savers will wake up to a surprise HMRC letter on their doorstep, it has been warned. Nearly 2.1 million people ...