James, because they 'assure you' that the third attempt is correct you believe them? No doubt they said they were correct the first and second times as well....If only my boss or bank would accept such assurances without proof. And as far as costs go, I pay either way - through taxes which ultimately cover the speed hump check or through repairs to my low to the ground Mini - which scrapes even at 10-15mph over the hump. The expensive option is most definitely NOT your speed hump check. At least Renata is would rather gather the evidence.