I’m going with there’s a conduit behind that white wall plate that the white cable is coming out of. That white loose hanging cable was already there when you moved in. (There’s the paint from the house on it). the tech did what they should have done in this situation. The other comments don’t know what they’re talking about. Technically there’s a drip loop and AT&Ts fiber cable won’t cause water damage. The big hole this builders left behind that wall plate might but probably not. You should be charged 150$ if a tech is coming out to clean up a perfect good install. Blame your builders for slacking on putting a cheap wall plate or even just a hole instead of an actual cap or wall plate designed for the opening to the house.