Sorry this is long. What is wrong with me?
You are sure there is nothing directly behind it inside the TT such as trim? I would be interested to measure the distance between the two protrusions, then measure the same distance to the outside and see if you notice a tiny dimple, confirming this is likely a structure element from behind or something inside the wall poking out such as a nail/staple. To me, it almost appears as though it could be an anchor of some sort for attaching the awning that fingers down into the wall and was stressed; even from driving... If it was a wind issue, I would think this would impact the edges of the awning first, but maybe it would be reinforced there. I would also try to pull on the awning and see if it gives at these holes showing a telltale secure point that is failing. At least now you confirmed what it is and better apt to argue your point. And if it does not move when you force the awning, you just put a hole (did I just do that?) in their theory it was a wind issue, but instead some other structural component such as a screw that is too long, or improperly installed protruding out.
Reminds me of my old (brand new) Grand Cherokee Overland that lasted 6 months. Had many issues, one being a check engine light that the dealer told me was due to "me installing new speakers", or the similar issue to yours in that a couple weeks in I noticed that on the rear driver side of the vehicle, both the internal and external panels were popping out. I was able to easily push the external panel in, but the internal panel would not pop back in with minimal force. I brought it in and they told me it was because " I removed the panels", and that they would not cover it under warranty. After pushing, they said they would "try" to contact Chrysler again, sending photos, but the feet were broken, so it was not a warranty issue because "someone (I) broke them". It would be $500 and the dealer told me they wouldn't repair it because they didn't break it. Long story short after Chrysler denied again, I finally went to the Service Manager and told him to contact the owner and tell him that I bought a $50K plus vehicle from him and within weeks noticed this issue. That during my ownership, I did not alter anything in the vehicle including speakers or anything else, with my only manipulation being filling the gas tank; one time. That as a customer I really don't care if it was a dealer, or a warranty issue, but I was 100% certain it was not my issue and I am a bit surprised they are not standing behind their product in what appears to be an small issue. That worked, the next day the owner authorized the repair. My problems did not end though as between the horrendous service with just one example of a check engine light being blamed on a speaker, transmission issues, climate control issues, and ongoing popping from the rear that they said was a water bottle (I believe was the panels under stress), I sold it losing quite a bit of money. Once I was rid of that junk, I never felt so good about losing so much money... Odd feeling it was...
Anyway, back to you. I think it will be easier like I said if you can identify what it is. I can't see it well in the pics, but don't see holes indicating it "could" have been something attached from the outside that was forced outward. It would be interesting to take a stud finder, or magnet and confirm/deny there is something of metal still in there. Also, where I recognize you say you inspected it upon purchase, It's a big trailer and you would not be the first to miss something, especially if it was barely noticeable because it was either manually forced back in (hidden), bright LED's on hiding it per backlight, and/or was not pronounced until you put it under a normal load exposing. Either way, if you KNOW you did not do it, and the wind was within specs of the manual, then go all the way to the big guy and don't let them out of it. It took me a couple weeks of them going back and forth with the manufacturer and trying to pin a flaw on their customer, before I was able to get it sorted out. Just go in with the knowledge that it is not your fault and turn it on their customer service of a 30K plus brand new TT...
BTW, the good news is that as long as this is not structural, meaning it won't return again once stressed per your testing, it looks like an easy repair. You can commonly request paint from the factory that will allow you to patch this. $15 at Home Depot will get you a fiberglass repair kit with bondo. You may need to remove some of the protrusion if you cannot force it in, but if you sand/apply a small fiberglass patch, then feather some bondo by sanding, you likely won't be able to tell it ever happened. Its a nice lighter paint with not design that is in a great location being high and up against another structure, so it evades that large flat mass that would otherwise immediately jump out at you. Again, don't do this until you know this is not a structural issue as it will just return. But I would first fight the dealer to get them to repair it not only cosmetically, but identifying what caused it! Good luck!
