What is the odds ?

What is the odds that someone with the same last name as you will be at the campground in the same area ?, 2 weeks ago when I arrived at the campground I found the attendants had gave my spot to someone else with the same last name as me, they were all set up and told the campground staff they were not moving , so I ended up with their spot , which was smaller but was actually a better one , the campground staff apologized and refunded my fees for the 3 nights I was there.
my last name is 488 out of a 1000