Then next day, we receive an email saying we would be charged a late
fee, refueling and and refueling sir charge. We returned the vehicle
with a full tank after refueling 50km from the city, yet the fuel they
claimed to have added was for double that amount.

Then to add insult to injury, another fee was charged they day after for no reason that has been presented to us.

In short, they have broken a verbal agreement, overcharged for fuel
and added a extra charge for no apparent reason for a total additional cost of $220.