I have to admit—I’d almost given up on sending out royal mail. On the occasion of Prince William and Kate Middleton’s 10th wedding anniversary, right on schedule, I penned a heartfelt note. 10 years! It was a big deal, an occasion to celebrate. But after sending my note in early April to the U.K., it was nearing August and I had yet to hear back.

kate and william anniversary card

But then, there it was: A letter postmarked “Royal Mail” sitting regally amongst my bills. It was even stamped with the Royal Cypher of Queen Elizabeth II and had a return address that simply stated Kensington Palace. Impossible to miss.

I peeled it open: There, inside was a beautiful typed note from William and Kate, thanking me for thinking of them on their special day. It read: “The Duke and Duchess of Cambridge were touched by your kind message on the occasion of their 10th wedding anniversary. This was most thoughtful of you and greatly appreciated by Their Royal Highnesses who send you their warmest thanks and best wishes.”