A dishonest car rental company!!

The worst car rental experience I have never had. Picked up car and noticed 4 damages on the car which are not noted on the report, although those damages are not major, they are still obvious to see. I took photos of the damages I can see. Unfortunately, I missed a tiny stain like dent in the windscreen, it was 7 o'clock at night when I picked the car up and the windscreen is somewhat dirty with water stain because of the rain. With normal eyesight, I wouldn't even see the dent. Surprisingly, when the owner checking the car on our return, within less than half minute, he walked around the car, didn't even mention the other obvious damages which I took photos already, but went straight to the dent and spotted it up accurately in HEAVY POURING RAIN!! I have to say he must have a kind of special power to see it through the heavy water, and wipe water off exactly the area where the dent is. Even after he told me the exist of the dent, it is no way for us to find it until he found a towel to dry the area up, and I have to lean as closer as I can to the windscreen (less then 10 cm) to tell if it's a stain or dust. I felt I was totally tricked for money. I have asked the owner to fix the dent and charge me with the receipt, this was to make sure he is not using this dent again to trick other innocent people. However he charged $102 right after we left, I still have not received receipt showing dent is fixed. If you are using this company, make sure you don't pick up car after 6 pm in dark, you have to spend time check extremely carefully, wipe the windscreen while you checking. Totally ridiculous dishonest people just wanting more money. I have been renting cars travelling all over the world in past 20 years, never had any issue. This is a lesson for me indeed! I have taken some photos of the dent, but can't even tell where the dent is when I come back and looked. (not obvious enough for camera to pick it up).