Extremely grateful to another user on this site, I used this part to fix the door instead of getting a whole new door, since this part isn't "officially" associated with this particular model (i.e., if you look up parts for the profile advantium, they do not list a door latch part separately). But this part worked perfectly and it was a very simple fix, although it took a little time taking of the old one and fitting this in, so be patient and get a partner to hold up a flashlight while you dig in there
(The spring is not included in this part, so be sure to keep the old spring). I found a YouTube video that helped with the confidence to pry off the inner lining (I used a butter knife, a strong puddy knive would have been better in retrospect, I cracked a little part of the plastic lining). But once it was in, door closes perfectly, and microwave works as per the norm.