question about placing windows in the foundation

(sorry Mods, i know this is probably not the right spot, but im dealing with this RIGHT now)

so, i had a company come out to install a basement window (48X48)

they came in and cut a section of foundation out, which leaves the bottom of the window level with the grass, but 3 feet about the basement floor

now, there is about 9 inches of foundation left above the cut out and they say it does not need aditional support

i think it does, and i thought (i know, key word) this was included in what the contract calls "prepping the hole for window"

the work is stalled now and were stuck on whether or not it needs a beam or some other form of support about the window


anyone have any experience with this?