When did you do them and who is mission author???
Mission created by IOI652532.
I did them August 8, 2021 with my wife agent name AlfaEra, she is not receive mission day tick too.
Well there is your problem August missions had to be be on the map in the first post of the following thread
And/or created by one or the named authors in that thread.
Also August participants are asked to file support tickets in app, not post to forum
Todavía no he recibido medalla de Misión Day de Agosto
Hello ! We still haven't received the last MD medal, we have finished the Bremen MD mission (not an official one), which we started with the penultimate (1st "virtual") MD. The 1st was not counted, the 2nd was not counted, although it was always said that there were no official missions, which is not possible in German even in the pandemic & with increasing numbers of infections. We can also prove this with screenshots and the scanner.
The second MD only counted official Missions from NIA. Looking at Bremen, there are official NIA Missions there, did you do these? If you did, open a Support Ticket as Niantic wrote here.
The first MD had some problems for which Niantic opened a form, As this form has already closed, I don't think you'll be able to get the tick for the first MD anymore.