I need some advice about my new granite countertops. We just had granite countertops installed in our kitchen and in our bathroom (yesterday). After the installers left, and my husband was putting in the faucets, we noticed several cracks in the granite orginating from the drilled holes. There are 6 in all. The center hole has a crack to the inside edge (sink edge), a crack to the outside edge, and a crack to the the holes on either side of it. The hole on the right also has a crack leading to the front and back. We were very upset because we assume that the installers know that they cracked the granite and just hoped we wouldn't notice. We called our kitchen design guy and explained things and he acted like it was something WE did.

He said he would come Monday to look at it.
My husband said he thinks they may have used a dull drill bit and had to use too much pressure and that's what caused the cracks. So, nervously I went and checked the kitchen sink portion of our granite, and sure enough, there is also a crack therefrom the center faucet hole back to the back edge AND forward to the sink-side edge. Well, now I'm really worried. The bathroom vanity was a small piece; I can see them possibly replacing that. But the kitchen counter is about an 8 foot piece (and "pieced" on both ends to the next piece) and I can't imagine them being willing to replace THAT. Not to mentions, it's a beautiful piece of granite, and I hate to lose it.
The granite guy is coming Monday and I'm not sure what he's going to say. We have put a stop payment on our check until this all gets settled. My questions is, what if he wants to just "fix it"? Can that kind of crack be fixed or should the slab be replaced? It's not that you can really see the cracks but I'm afraid they'll get worse and then we'll have no recourse. What do you think? Should we push for having the countertops replaced? Or is there a reliable way to repair this kind of crack.
Thanks so much for your help. We know nothing about granite and don't want to be taken.
Lydia