What is the ruling on altering electricity receipts to obtain money instead of losing financial entitlements from the state, and what is the ruling on taking extra money beyond the original debt for moral damage and the loss of effort and time to recover the money?

If the state is refraining from paying you a fixed salary, there is no harm in you altering the government electricity company's receipts to the extent of your right over the state, without transgression. As for the remaining price of the car, it is a debt owed by the buyer, and it is not permissible for the creditor to take anything beyond his debt, except for the actual expenses incurred due to procrastination, such as legal fees.