Dishonest Company, Dishonest employees

Europcar Fourways i hired a car for long distance trip...As I always hire when I do long distance with family.The front office where very professional,then when the car came it was clean with no visible damage to the naked eye...The front wheel was flat..The widescreen looked like it was just installed cause it had tape marks on it..I asked the driver why the front was flat ,he said I can pass by Garage and pump it,We did quick inspection of the car since I was running late, everything like I said it looked ohk..ohk I took the car them pumped the wheel then continued with my journey.Now after 5 days I return the car ...The driver/Car inspector came and inspect the car, he notice that the car Widescreen has crack right at end at black part of the screen that I did not notice,I tell him I don't know how it happened since is not a stone chip or something like that,then he rounds the again and he say car has dent and I told him again I drove this car alone n never had in accident.He tell me that I need to come inside to fill a form just to say I noticed the problems of the car .I agree.Then I asked him what will happen after he said nothing and continue with his job I again ask for the inspection receipt from previous driver before me guess what nowhere to found.I leave the next day I get an invoice detailing everything cost..Am happy with the invoice at bottom it also say my refund for deposit will be billed back to my account.Ohk day pass by...no refund no communication from them..I decide to call them and now they tell me I have claim under my name the refund will be done if any in 21 days.Apparently when I was signing the accident book was agreeing that I caused the damage. Now my problem with Europcar is when I fetched the car ,the was nowway I could see the cracked windscreen,Also the dent when the car is clean you can't see it...The same way your inspector could not see that the tyre is flat. I don't care about deposit but I think your employees are dishonest and I will never hire your car's again I have been a loyal customer to the company,I have never had any accident with your over the years.Am very much disappointed,I will also encourage the company that I work for to never hire your car's again.