I was diagnosed with postpartum depression and have been on leave of absence for 4 months +. My expected return date (after 2 extension requests) is 5th of July. I have decided not to return as I have been much happier during leave and will likely relapse if i return, but don't know how to go about resigning. Should I schedule an in-person meeting with my manager? or can I send an email for resignation (if so, what do I have to say and what shouldn't I say?)? I found information online that companies can ask for the salary/ short term disability and insurance payment back, but that they typically don't. Can anyone share their experience?