This is an embarrassing bug I thought I had already fixed some time ago.
Strange thing: I have checked your account. It looks o.k. to me, it will expire on June 27.

I processed my renewal and discovered that my unicorn account is now valid until June 21, 2019

Where did you get that info?

I think (well, kind of hope) it just displays the wrong date but enters the right one in the database. Of course I don't want to cheat you guys.

Thanks for supporting!

Beep, Bopp, Bleep: info@modulargrid.net