Letter of attestation fines in france

A friend was fined 340 eu for not producing a letter of attestation on the spot in france a few years ago,
any idea of how much the fine would have been if it went to court and the company did not contest? or what the highest fine for this offence is? i was fined over 4000 eu for not being able to produce 6 tacho’s when i was on holiday, the fine should be for no letter? the company wont contest,

fordino:
A friend was fined 340 eu for not producing a letter of attestation on the spot in france a few years ago,
any idea of how much the fine would have been if it went to court and the company did not contest? or what the highest fine for this offence is? i was fined over 4000 eu for not being able to produce 6 tacho’s when i was on holiday, the fine should be for no letter? the company wont contest,

How long ago was this, because you need to produce 28 days of records plus the day you are driving