Check your starting kilometers

Excellent service ,but check you starting kilometers-I rented twice in the last week at O R Tambo and of the 200km free an average of 27 km was already used. I was charged for km over the free km which I DID NOT go over and or used. Take a photo of the odometer of the vehicle before you drive and compare it with the km reading on their electronic device before you sign. If this carries on they are the same as the other companies.