Walk-in to say hi?

Working on staying in touch now!
It’s been 2.5 weeks, I started to follow up after 1.5 weeks, but I’m experiencing some slow downs on the HR side of things. This has happened before, and I ended up giving them too much space, trying not to be a nuisance, and HR lost my file and hired someone else, despite a strong recommendation from within the company, so I’m not eager to let that happen again.
Is it bad form to check in with my original contact again, having tried and failed to get a hold of HR multiple times a day for the past week?