A few months ago I was pretty certain I was about to be made redundant and acted rather unprofessionally (i.e. desperate as hell) to a company which I interviewed with and whom promised to give me a callback around New Years. Of course that call never came and later on I read in a popular LinkedIn post from a recruiter that yes, submitting multiple applications to the same company is a very big no-no and you could end up unofficially blacklisted for being desperate.
I've now realised my mistake but would like to confirm it and wonder how I can fix it, as this company has a high number of openings which fit very nicely with my expertise and experience. I was thinking of writing an email to my HR contact, but wonder if this is a good idea?