Aren't they open today?
Get out your calculator and do a mathematical calculation for what is percentage of the total area of the slab that would have been left over after the desired pieces were cut out. Deduct that from the total price of the slab.
That is the minimum amount they should refund you.
Alternatively, and preferably they can give you another slab of the same type of stone of the same thickness whose total area equals the area of the leftover amount.
Find the paper on which you wrote that you wanted the remainder.
If you can't find the paper or you didn't write it down, remember who you told it to.
Get on the horn right now and ask for the manager.
Don't tell the manger that you wanted to gift some to friends.
Just say you had plans to use it and it needs to match, and you specified that you wanted the remainder and tell him to whom you told it if you can't find a paper that so states.
If he doesn't give you another slab or doesn't give you a satisfactory refund, say calmly, something like, "oh, that's too bad. I am very active on the internet. I am sure you know how much business these days is driven by word of mouth and the internet. I would love to write a great review for your business, and the best reviews for business are the ones where a business can resolve a problem satisfactorily. How do you think we can resolve this?"
If he then still tells you to go blow, then you can say something like,
"I really don't want to write on all the internet sites that your business is uncooperative in resolving problems that it itself created by not respecting the customer's explicit instructions to save the remnant. Don't you think it would be better for all concerned here to make good on what I made to clear to Johnny the job foreman (whoever) and have a satisfied customer?"
Pregnant pause.
"Would you like me to call you back in 10 minutes after you've had a few minutes to think about it or do you think we can resolve this right now?"
And then you've gotten resolution or you light the internet on fire.
Q