Greetings ellie welcome to the Forum.
Under the hood, there's a "coupling", which the column runs through to turn the wheels.
Sounds like they damaged it, and there's some play in the steering now.
You'd have to drop your Steering Box down and replace the Rubber Coupling in it.
If I'm right about this, get the hood and door open on it, and stand outside where you can see the Coupling, while you turn the wheel back and forth. I think you'll see where the slack is then.
Hope this works for you.
Have a good Day !
S.W.