Well, Jan, I know this can be frustrating, but I don't think it will be necessary to close your account. :-)
So, let's just take some time to figure out what needs to be done.
If all that's holding you up is that the text box won't accept "DNA" it's because there's a minimum number of characters that you need to put in. So, for now, you could put in something like "Personal information from DNA test. Details to be entered in the near future."
Then, once we get that all set up, we can help you write up a DNA confirmation citation that will show what you know.