Suggest that you also post in the windows forum

Is that on the operable panel? Fiberglass takes paint and repair quite well.

It is its on the top and corner, im worried since it will need to be sanded down/smoothed out it is going to make the door not look right, also the vinyl door framing itself was cut as well im worried on that part the trim isnt going to hid it unless it do something different but why should i if its there fault the messed it up

If you are talking about the top of the frame (marks), that will cover by trim. As far as the door, they can certainly make the repairs and match the paint 100% (they can call and get the formula).

I am not advising what you should do either way, only answering the question as to whether or not the repair is possible.