I guess that's why I am so anal retentive about taking my RV or any of my vehicles in for repairs any more. Always seems like either something else gets damaged or the work that is done is subpar or incomplete.
On our new rig, we had a small punch list of mostly minor repairs needed under warranty and about half the items addressed either had to be done twice or I had to fix properly my self. I was just happy no other damage was done while they had it and happily completed the rest of the repairs properly that I knew could do myself when we got it back. Not what I expected from one of the largest nationwide dealers...
I hope that for all your efforts and waiting to get your rig back and fixed, your steering/towing issue is solved.