If glass cracks it has to start somewhere and there's usually 2 ways it happens.
Something like a stone flies up and hits the glass while you're driving, then it spiders outward. You can usually see a chip or crater where that started and usually in the middle of the glass.
The other way is the edge of the glass. It can be made defectively or get hit on the edge. You can very lightly hit the edge of a piece of glass, take a chip out of it, and watch it spider pretty easily.
Is that picture you have in post 45 your current damaged glass? If yes, where did the crack start, at the middle or the edge?
If you say middle, you're probably up shits creek and you're going to be told a rock did it.
If its the edge of the glass you have a slightly better chance of getting them to eat it. But even if its an edge crack, they're probably going to say it didnt leave their shop cracked and tell you to pound sand.
Either way, if you had the glass installed at Billy Bobs House of Windshields, Bait and Tackle, do you really want to go back there?
If you dont want to go back to Billy Bobs, and cant really afford to fix it right away, you can buy some DIY repair kit for now. Its basically crazy glue you just fill in the crack with for the short term.
Just google windshield crack repair.