x2
Definitely take it back. It's missing the cover strip and it does look a little fishy how it all was applied in that area and why the strip hanging down.
Taking it back, you will CYA with any further problems if it is documented in the service department. Take pictures, lots of pictures before you take it back in.
IMHO if they give you any flack ask to see the in house service report on that TT. It sure does look like they fixed something there and poorly at that. Good Luck.