Calendar - multiple repeat daily reminders in my calendars

I do not know what I did but I had set up a few daily reminders. I opened my phone and now see that those reminders appear 6 or 7 times in the same day, I delete them but they remain on the daily reminder list in grey for that day for in some cases for the year.

How do I permenantly delete these.

They also appear on my I cloud ,and desktop as well.

[Edited by Moderator]