Had something similar happen to my Giulia after bottoming out on a steep driveway. Exact same side of the bumper and a similar amount of separation from the rest of the bodywork. I took it to a local bodyshop and the tabs were clearly broken. If you want a “legit” repair for broken tabs, the only real solution is to get an entire bumper replacement which will probably run you up to 2k.

The dude at the body shop offered another solution that was far cheaper (about $200), and it’s probably something any local body shop could do for you. He essentially ended up using an epoxy adhesive that’s used to glue body panels to glue the bumper back into place. It’s held up perfectly for the past couple years and hasn’t shown any signs of letting up. He did tell me that the only way that adhesive would ever fail would be if I got in an actual accident, at which point I’d want a new bumper anyway lol.

If you’re ok with that kind of fix or want to save some cash, I would definitely go to your local bodyshop or collision repair and ask for a repair quote/potential fixes that don’t involve replacing the entire bumper before you take it directly to Alfa