******* after service (Returnable deposit not returned)

I hired a car from Europcar, I took the vehicle on the 19/11/2017 at 11:15pm and returned it with a full tank fuel on the 20/11/2017 at 11:05pm I spoke to the consultant and left the receipt on the dash board. I have been charged an extra day. this has been happening for the last 5 years of dealing with them. I have been in contact with them from the 21/11/2017 to sort this issue out, today is the 01/12/2017 and 10 days later still nothing as been done. If you don't want to be ********** don't hire from Europcar.