Back to the issue ....
U should have just follow what the meter shown , forgot to press it's your fault .
Make less only .... we won't lose money one .
U shouldn't have ask for compensations .
If they insist on $24 , just close the deal at $24 , why insist on $25 because it's a Merc ?
Maybe u thought u are a Merc , when u responded to them , u shown some arrogancy , that caused pax to be really pissed off , maybe .
My opinion only .