Within France that number should be 08-00-82-48-24.
What you have there is an approximation for calling from the US to France. From the US, It should be 011-33 800 824 824.
French numbers are 10 numbers. A 08 number is to a computerized phone. My home computerized phone is 09.
00 is invalid. To dial outside the US, it's 011. 33 is the French country code. You need none of this if you are inside France.
I have no idea why they would give someone a number to be dialed from the US to France. Someone screwed up. Before you drive away with your car, ask the staff to go over the telephone numbers with you.
BTW, 800-numbers don't exist as such in France. Yes, we can dial US 800-numbers from France. I do it on my French cell, my French computerized phone, and my American phone. No problem.
And Carol, you are right. It's an easily fixable problem...if you know the answer.