Yesterday I was playing with my accounts normally, today there was a change in my router, before entering when I wanted to vote I left I had already voted, then enter my account and it turns out that the pin does not match, what should I do?
you can try resetting your pin (the PIC) at the control panel guide here https://royals.ms/forum/threads/control-panel-release.154958/
What happens is that I have several accounts linked to some emails and I only need an account to change the pin but, I send mail and it does not arrive, must it be because I have already made my other account with that email?
i think you might have forgotten which email you registered that account with you need to input the correct email to reset the pin
you can only change your email once you get through the login there is a change email function only after a successful login with the password and PIC if you forgot the email, that you used to sign up, along with the loss of your PIC, then that is kinda out of the scope of the normal account/PIC recovery (hmmmmmmmmmmm )
If can't get email, refer to this thread - https://royals.ms/forum/threads/lost-access-to-email.154999/