Is it permissible to inflate car repair invoices to recover the full value of the damage from insurance companies that only compensate a small portion of it?

A merchant must be honest and truthful in their buying and selling, and in what they record in their invoices. It is not permissible for them to record anything contrary to reality due to the resulting corruption, prohibitions, and falsehood. Incomplete compensation from insurance companies does not justify lying, and these invoices may be exploited to unjustly consume people's wealth. The merchant must be truthful, and the aggrieved customer should pursue their rights through legitimate means.